Please Help me With my Fault Codes

[cavwebmaster]

This is a thread to ask questions about fault codes.

This is how you read them:


http://www.cavweb-forums.co.uk/showthread.php?t=40464

Mark.

[nightrider]

ne info on resetting the codes by ne chance

[goonas]

I think if you disconnect the battery for 10 mins or so it should reset all the fault codes!

[Carl Davey]

Or ignition on/off 25+ times - that's what i do anyway. ;)

[Schoie]

dose this fault code thingy work on all cavs, or only petrol.
i have a turbo diesel and one day tis stuff may be usefull.

thanx in advance for any help;)




No this doesn't work for the Cav TD.
Andy K

[turbo_jeff]

my 4x4 is not workin (front wheels spin) ive looked at the codes and plugs but my plug hasnt go the j pin ??

also the fuse hasnt blow and the 4x4 light isnt on


anyone shed anyt light :rolleyes:

[Andy K]

L/M reg cars don't have this facility on the 4x4.

Needs to be read with tech 1


I would check to see if the ecu is fully plugged in to the right of the fusebox (yellow connector on L/M reg)

[cav-mad-gav]

just tried the ABS one on my 1990 CDi, i had a wire in bit K (brown) connected to A and turn ignition on, ABS light just stayed on, so tried with the engine running and still nothing :rolleyes:


any ideas then? cheers :)

[Andy K]

it's touch and go whether it (ABS codes) will work on early models.

You can't on yours

[cavtastic]

would fault code reading work on a 1.6 carb?

[Andy K]

Yes, using the codes from here

http://www.vauxweb.com/cgi-bin/index.cgi?s=;ths=4

[cavtastic]

crikey, thats a big fault code :lmao:

Software error:
Can't locate site_data/Data/corsa_nova_index_ecu_data.html in @INC (@INC contains: /usr/lib/perl5/5.6.0/i386-linux /usr/lib/perl5/5.6.0 /usr/lib/perl5/site_perl/5.6.0/i386-linux /usr/lib/perl5/site_perl/5.6.0 /usr/lib/perl5/site_perl .) at site_data/Sources/Page

[cavtastic]

the blue plug on mine (supposedly the diagnostic plug) is just lying there with nothing attached to it, and has only 2 pins. however next to it is a green plug attached to a black box with 'GM' written on it. this has 3 pins with A, B & C marked on them.

is this the form of diagnostic management for my model?
(G-plate 1989 L - pierburg 2E3 carb)

or perhaps there is no diagnostic facility for my model?

[cavtastic]

my bad, i just found it lurking underneath my awp wiring :O

good job i didnt short the other plug ROFL :lmao:

[cavtastic]

k ive done as stated above. problem is, i sit in and wait for a light to flash on the instrument panel, but nothing does!

is this because there are no faults to show?

its also possible that there isnt a bulb in the right place, as i did move some bulbs around when i installed the a new instrument panel in there.

a pic or diag of the location of the light, or actually any feedback would be much appreciated.

my cars a piece of s**t, so there must be a fault somewhere :lmao:

[Andy K]

Turn the ignition on.

Is there an orange light next to the handbrake light ?

There is a picture of the dashboard in this how2 forum somewhere

[cavtastic]

k i had a quick look for threads that might have that pic, but didnt find anything.

seems as though i need to relocate a bulb next to the handbrake ligh then. (is it to the right or left hand side?)

[cavtastic]

k i found the pic u meant, and im pretty sure that light does work, so maybe i didnt short the A & B pins properly :O

failing that, can you think of any other reasons as to why it wouldnt light up?

should the diagnostic plug be replaced or left out when ignition is turned on?

thanx for your help, and sorry for the spam :confused:

[swanny]

Just like to say a big thankyou for providing this info. Found the fault to be code 92 Camshaft sensor (cav 2.0 16V ecotec). When I disconnected & reconnected the connector to this sensor the fault went away, so hopefully just a dirty connector. Time will tell if I actually need to replace the sensor or not, but at least I don't have to go to a garage just to find what the fault code is.

I also fixed my idle control valve problem (car kept stalling if I stopped at lights, felt like a right muppet) using this forum, again saved me a fortune in garage fees (replaced the idle control valve, and put filter on the breather pipe between sump and camcover assembly, as found on new vectra's I believe. )

What a fantastic forum, thanks everyone!!!!
:up:

[nuview]

Tried to do this on my Omega but couldn't get it to work. The diagnosis plug, (If i am in the right place under the steering column) is a 16 pin version of the Astra 3 plug, not as shown for the Vectra/Omega. Can anyone help as i am trying to find the faults and don't want to fry anything. Many thanks, Mike

[Andy K]

Yes you have found it.

It should be the vectra plug though but vertically mounted.

The only problem is knowing which is pin 1.

From memory pins 1, 3,4,5,6 and 16 should have contacts in.
so this should help.

or look at the colours behind the plug.

red = pin 16

[nuview]

Many thanks for that.

[cavtastic]

just to drag it on a bit lol....

right... carb models... one site says carb models do not store fault codes (which makes sense tbh) yet vauxweb say they do :confused:

now the link on vauxweb was taken down due to copywright infringement, so i guess bosch or whoever owns that copywright didnt want people to take fault codes themselves....

that sound about right? any1 shed any light on this?

[Andy K]

yeah carb models do have diag codes. (the 1.4's may not)

If it's got an orange ecu light on the dash then it's got fault codes.


Didn't know the site had gone :(

Maybe the carb FC are on the topbuzz site

[cavtastic]

topbuzz links to fault codes are down as well :'(


quick google search only seemed to reveal links to multec fault code lists, this is gonna be a tough nut to crack lol.

some1 mentioned yours (andyK) and stricks names on the vauxweb forum, so i am hoping strick may be able to shed some light on this.

and yeah it has got the orange light on ignition startup, i kinda figured it must be designed for fault codes if it has the A&B pins wired up on the diag plug.

cheers

steve :beer:

[manjax]

Yes, using the codes from here

http://www.vauxweb.com/cgi-bin/index.cgi?s=;ths=4

Has anyone got any links to fault codes for 1991 J plated Cav 1.6L as engine management light keeps coming on intermittently so could do with finding the fault before becomes major problem?

Link above still not working

[Mark T]

http://www.topbuzz1.carenthusiasts.co.uk/info/fault_codes/fault_codes.htm

[cavtastic]

If your engine is run on a carburetor, then it has no ECU, hence no fault codes can be logged or read.

shame :(

i could do with knowing what to sort on my engine :cry:

[Andy K]

Some (most) carb models do have ECU's though.

Do you get an orange ecu light come on on the dash ?

Does it come on while driving ? If so then read the codes.

If it doesn't come on while driving this will be no help to you

[cavtastic]

its flickered once when i braked hard, but otherwise only comes on when turning the engine over or off. wheres this ecu then? cant see one in the drivers footwell, or do u mean the MSTS (timing) module?

[Andy M]

Strange thing happened - shorted out a and b - i then kept the wire in a and b and started it up - the EM light just flashed on and off repeatedly - no pauses or nothing

[Andy M]

But if i do it without the engine running and just the ignition on - i get code 12 repeatedly

[bbuk]

does the engine need to be turned on in order to read the ABS fault codes

[Mark T]

does the engine need to be turned on in order to read the ABS fault codes
no...

[bbuk]

my abs light is not flashing after shortening pins A and K.

[cavtastic]

my abs light is not flashing after shortening pins A and K.

did u definitely have the ABS light on then?

[bbuk]

the light was on but it wasnt flashing.

[mamurray]

Can you read the ABS fault codes on Tigras, if so what pins do you short?

[Mark T]

same pins, but 95> it's a Tech1 function only.

[Ian]

And I shall have one of those shortly (I hope).

Let's say it's on order... watch this space.

Ian.

[gsi170]

u say non ecotec the engine needs to be running but i cant get my engine running cus of the fault and since i dunno the fault is it not gonna work

[Andy K]

try reading the codes without.

[Ian]

It should work.

The reason you want it running is so that you don't get a pile of codes that are related to moving parts not moving. ;)

Ian.

[Cavirgin]

Any of these codes/checks suitable for 1.8i Cavs?

A bit thick here!

[Mark T]

yes..

[scal]

right just done it, got a code 12, i think! one flash pause then two more flashes! what does that mean, on a ohc 2.0i gls (93)?

[Mark T]

12 is the separator, if that's all you get then there are no codes stored.

[jt135]

My diagnostics bit does not have a wire going into K. Is that normal. Only concerned as my ABS does not function properly.

Thanks
James

[Cheater2k]

How do you reset the codes on the ecotec, ive tried both 25 times on and off and dissconnected the ecu for 30 mins.

[Gareth]

disconnect battery for 10 mins or so, but it will clear after a while anyway.

Remember that Code 12 will flash all the time anyway, reset or not.

[Ian]

It's worth pointing out that the Siemens Ecotec ECU doesn't lose stored codes simply by disconnecting it, as they are stored in non volatile memory.

There are two ways to reset it - one is to use Tech1, the other (according to TIS) is something like 20 'clean starts'.

A clean start was defined as starting the engine from cold and running it until warm, then switching off again. As Gareth says above, the codes will disappear by themselves in time.

Ian.

[Carlos28]

Hi guys, and a big hello to a great forum before I ask for your help.

OK, I just bought a Cavalier GLS 1.8i (L - '94) a month ago, and the ECU light has been coming on a few times. The first time it came on, it stayed on until I stopped the car and restarted again (after about 15 minutes), then it was fine for a while, but came on again several times (different journeys), most noticably when on Motorways at speed.

I've just been away on hols for 2 weeks, and on the drive home from Gatwick, it kept coming on for about 20-30 seconds at a time, then going off. It's been doing this evry time I drive it since getting home (Sunday).

I've followed this thread, and the how 2 onTopbuzz, and I have the following error code:
"13 - Oxygen sensor No change in voltage/open circuit".

My question is, what is this, and does anyone know how I can rectify it??

Thanks for your patience, and anticipated help.

This forum rocks, nice to see so many people helping others.

[Andy K]

replace the sensor in the exhaust pipe

[Carlos28]

Thanks Andy, I assume that's the Oxygen sensor?
Cheers for your help.

[Andy K]

yes......

[european bob]

here is a pic of how to short the plug out in order to read the codes

F.A.O Admin: don't know if you wanna move this to the how to read fault codes thread

http://img.photobucket.com/albums/v327/european_bob/IMG_0204.jpg

[DarrenM]

is that how you short things then?

sorry couldnt resist ;)

[european bob]

cheers darren.. lol

thought it was good pic of where to stick the wires!!!

[kingofthekerb]

never seen this thread before and me Cavs not running right (sounds like its running on 2 cylinders but no EM light comes on when ignition switched on during pre check)

Hopefully find out the problem and sort it.

If not i will kick it.....really hard because i have tried everything...well nearly.....could do replacing head gasket and cleaning plugs with wet n dry (they are about 3 months old and BLACK) i know this is due to the mixture being too rich and i know a mate who can adjust it so should get there in the end.


Cheers for all the info you guys are stars.

[Geffd]

Tried to do this on my Omega but couldn't get it to work. The diagnosis plug, (If i am in the right place under the steering column) is a 16 pin version of the Astra 3 plug, not as shown for the Vectra/Omega. Can anyone help as i am trying to find the faults and don't want to fry anything. Many thanks, Mike

On the 16 pin plug it is pins 4 and 6 that need to be bridged No 1 being on outer edge of the widest part of the V shaped plug can send a pic if this helps .

[GSi-R]

Well, Ive known this thread exsisted, but this is the first time in years I have had to come and do some research :O My 4x4 light is now making an apprearance following a 1500 mile round trip to Germany and back. Need to check out the codes tomorrow. Fingers crossed its nothing serious. Theres no strange sounds etc coming from anywhere, and I still have 4wd.

[issunaz]

On the 16 pin plug it is pins 4 and 6 that need to be bridged No 1 being on outer edge of the widest part of the V shaped plug can send a pic if this helps .

Hi all,

Query on the shorting out!

Car is 98 MV6

On my Omega the socket is as described previously, under the steering column (16 pin). I removed the socket housing as I was sure I could not see a terminal in pin 4.
Sure enough if the red wire is 16 then I have wires to pins 5,7,8 (2 wires),11,13,15 and the red in 16.

Q. which wires do I need to short to read the codes :mmmm

Thanks
Martin

[GREYDJ]

It is threads like this that make this site so valuable. Thank god for the internet!

[cavt16]

I cant start the car cause i have no spark and its not the leads cause there is no spark comin from the coil,i have being told that it is the ecu but i hopr it isnt it showed up on tech 1 as no rpm signal

[shuttlemaddness]

MOAN >>
ive got a 2ltr cav 16v saloon auto gls .. & since i got it last may ive had nothin but problems. Its nothin like the old cav i used to have (mk2 8v).
That was like a bullet & all i kept getting was to replace brake pads & disks!!! but this new one stinks! its so sluggish. The ORANGE light is constant topic of discussion when we use it! About july last year it 1st came on .. soon after we,d bought it. I lost my rag with it & found out (by accident) that if u rev the car a bit & switch the ignition on & off it would go out & stay out!!!! this was brill. But a week ago the car started cutting out. We were going at about 60mph on a motorway & it just cut out .. whch is fun when U then start to fight with the steering & worry if the brakes will work! (leathal weapon) after phoning loads of spares shops i was more confused. I finally
was directed to finding someone who can read these CODES!!!!
It cost me £45 call out .. then another £43 (could have been £66 ) for a cam sensor. so i was told .. code #19 & #76 !! the bloke said its more likely to be the cam sensor. By the way i did this job myself. verdict : the orange light stays on now continuos !!! the car runs like cr*p ! & the ele windows now wont go up & down automatically !!! ugh i hear u say .. yeah thats right. huh. wot a load of rubbish. I used to be a real vauxhall die hard .. but im now thinking ill go buy a ford! .. i cant understand how u guys ..so many of u have all these problems but still love the thing???? its beyond me
very bored with it S.London ... OFFERS ? :down:

[Mark T]

19 is incorrect RPM Signal - Crankshaft Sesnor, and can make the car not run at all, as it is needed to tell the ECU to run the fuel pump.

76 Is continuous Torque Control, not one I've ever come across. Is your car an Auto?

[Mark T]

Electric windows will need reprogramming if you have disconnected the battery.

Open them a crack then close and hold, until the motor clunks.

[shuttlemaddness]

hi .. hey U guys are terrific on here .. anyhow .. story : the guy visits & makes a call out fee & says the "CAMshaft sensor" #19 & the "torque convertor sensor" #76 are showing up ! Ive since read that codes can remain in the memory !! so previous faults could show up. The repair guy didnt say any of this. ..
also i seem to keep reading that code 19 is "CRANKshaft" ... NOT >> camshaft << ???? im confused as i bought a Camshaft sensor & the fault is still there .. although its NOT quite the same as before.
Ive also been led to believe its a good idea to change both anyway .. & best u use genuine parts. So ?? how do i reset the -*$"£$% windows?? ..
AND ... is nnnnn nineteen the CAM or CRANK sensor ?
If its the cam .. i know where that is but ive been underneath & cant see the crank sensor or leads ???? i saw the lambda sensor almost soon after id bought the car.
cheers a lot u guys. :Cool2:
by the way .. if i short pins i get 12 12 12 12 etc etc as if theres NO fault
??? but there is ?? ugh??

[shuttlemaddness]

ok .. gottcha about the windows .. i will give that a try .. super.

[mig_v6]

how do i read the fault codes on the V6??

every now and again the management light will illuminate as i'm driving and go off after a couple of seconds. if i pull up at a junction or lights and the management light is on, then the car will stall.

any ideas?? :Cool2:

[bepe]

Have a look at this web site and do a search for ECU FAULT CODES, it shows you how to read the codes with a paper clip and has a extensive list of vauxhall engines and it should help you get what you need.
http://www.topbuzz1.carenthusiasts.co.uk

[bepe]

According to Topbuzz1 you can clear the memory by turning the ignition on and off thirty times (leaving it on for at least five seconds each time so that the emu completes a self diagnose).
havn't tried it myself :Cool2:

[base56]

well, I thought I'd check for any fault codes on my 96 calibra v6 automatic as today the management lght came on for a few secs and then the car stalled when I came to a stop giving way on a junction. Started ok again no probs. From using the paperclip diag how2 I came up with the following errors:

145 Incorrect immobiliser signal received Faulty unit or break in wiring

73 Air Flow Sensor (AFS) Low voltage

31 Engine RPM signal (crankshaft sensor) No signal

I think I was reading the codes right but it didn't flash code 12 as a seperator between codes (as the how2 suggests)just 12 12 12 145 145 145 73 73 73 31 31 31 12 12 12 and then back around again..

anywhoo, not sure where to go with this lot now as don't know a great deal about these faults that were picked up???? anyone give any suggestions please? ta!

[danuk]

Did you have your engine on while doing it?

[base56]

hmmmm, no i didn't. I thought the how2 said just to have the ignition on. Would that make a difference?

[danuk]

Yes..stick your paper clip in and then start your engine..things like crank sensor and airflow meter codes are there as the engine isnt runnung..you may find there arnt any codes stored at all ..have a go.

[base56]

ok cheers.... I'll go and give it a go now!

[base56]

right, repeated the diag using the paperclip whilst the engine was running and got the following:

21 Throttle position sensor High voltage
22 Throttle position sensor Low voltage
45 Oxygen sensor Air/fuel mixture too rich
73 Air Flow Sensor (AFS) Low voltage
145 Incorrect immobiliser signal received Faulty unit or break in wiring

more than I started with! GREAT! any words of wisdom, sure would be appreciated! Where do I start checking this stuff?

does it matter if each code doesn't flash 3 times each, as the 21/22.. only once or twice for each..

[S.E.cruiser]

I would try the earlier suggestion of clearing the memory by turning the ignition on thirty times with at least five second gap,test to make sure memory is clear,then drive the car until the fault develops and retest the codes.Then diagnose from the stored code present.I would suggest that air flow sensor and lambda codes can crop up as a result of the engine stalling and not a cause of it.But throttle position faults usually only show if there is a fault with the sensor or the wiring.Crank sensor signal faults can show for various reasons.Good luck....

[Yelloperil]

Ok Effin Ecotec got codes and EML on constantly!!!!

i get 24 & 94
24 is No RPM
but what the hell is 94 ??? looked on various sites and nothing listed!
Even carried out the test 3 times to chk i had the right fault code!

[base56]

Just had a look on topbuzz and On a Bosch Motronic 1.5 system 94 is the Hall Effect Switch (HES) High voltage...

hope this helps at all?

[Yelloperil]

Cheers base but what is it and where can i find it on the Ecotec??

[Mark T]

On the Ecotec.

24 is No Vehicle Speed Signal

94 isn't a valid code.

[Yelloperil]

Any ideas on how to fit fault code 24?

Oh and 94 if its in falid why it flashing up!!!

just redone test and it's deffo 94!!!

[S.E.cruiser]

I would say the hall effect switch is the camshaft sensor,you will find that the engine will run (in phased injection mode only,not sequential) even with the camshaft sensor disconnected.Try borrowing a substitute sensor from someone first.On the ecotec 16v I know the sensor is fitted behind the top cambelt cover.not sure about the 8v I assume the same place.

[S.E.cruiser]

No looks like 94 probably not camshaft sensor,but is related to the VSS.
The speed sensor is a hall effect sensor so that would explain it.Does your speedo work?

[Yelloperil]

No looks like 94 probably not camshaft sensor,but is related to the VSS.
The speed sensor is a hall effect sensor so that would explain it.Does your speedo work?


The speedo's cable driven!
mmmmm the plot thickens!! - maybe i should take it out west and burn it!

[S.E.cruiser]

What is your car exactly? , year?,manual or auto?,8 valve or 16 valve? Also is the car driving ok apart from the light being on?

[S.E.cruiser]

An auto would have a VSS for the transmission ECU. On the gearbox there will be two hall effect sensors,one is for input shaft speed,and the other one is for speed signal.I would check the connections on and around the gearbox.If you have a manual???????????

[Yelloperil]

The car is a 1995 2.0l 16V Ecotec Manual Trans.

the car runs fine and starts Every time other than the light i have no other problems!

[S.E.cruiser]

According to topbuzz you should have a Siemens Simtec 56.0/56.1 system which doesn't list code 94.But I have found inaccuracies on the site before,like listing my 1.6 1996 Vectra as having 2 digit codes when it has 4 digit codes?.The only thing I can suggest is see if you have a speed sensor on the gearbox.How long have you had the car,when did the fault start happening? Had any recent work done? Also look at your ECU and see what make it is.According to my technical data book you have bosch motronic 2.8 which isn't listed under cavalier on topbuzz,but is listed on other models like the calibra and omega.checking against these models shows as VSS and Hall effect sensor.Therefore you must have a speed sensor fitted to the gearbox which doesn't operate the speedo but sends a signal to the ECU for emmision/fueling reasons.

[Yelloperil]

I have had the car 3 months, it started happening approx 3 weeks ago. It seemed to start jast after i fitted the K&N -- hence why it thought it was the CAMshaft sensor.
MM so this speed sensor what does it look like? and there could it be?

[S.E.cruiser]

Assuming there is one,there will be a wire with a connector with 2 or 3 terminals in it going to a sender on the gearbox near the differential area.It may even be part of the cable drive gear.You may only be able to see it if you get under the car.If your not sure,I would phone the vauxhall parts department (have all vehicle details ready,logbook) and ask them for price and availability on the vehicle speed sensor on the gearbox.that way you will know if there is one fitted.Someone here may have the vauxhall EPC installed on there pc at home and could tell you.

[Yelloperil]

S..E -- had a good look for this VSS around the gear box and nothing!

But i remember'd i change my clock a 2 months or so ago - although the ecu code didn't crop up for a month!
MMM i wonder.......................

Cam thingy sorted jyst the bloody VSS --- i read somewhere that the Vss on the Ecotec comes from the ABS system maybe theres a faunt with one of the sensors there.

[S.E.cruiser]

Looks like you gonna need a wiring diagram,my haynes manuals got some in but it's at work at the moment,and it's not brilliant for diagrams anyway.you could be right as many modern cars with ABS use the wheel sensors to give VSS readings.The signal you are looking for would go from the ABS ECU to the Engine ECU,and possibly through the instrument cluster,if you still got the old clocks it would be worth reffiting it to see if the code clears.You can also read ABS fault codes using the paper clip and flashing light method,see topbuzz site http://www.topbuzz1.carenthusiasts.co.uk/ If there was a fault with one sensor it would put the ABS light on,worth a check though.Also I have noticed on cavaliers before with some corrosion on the ABS unit connectors.

[Yelloperil]

ok no faults with the ABS system logged, still dont know what this code 24 is!

swapped clocks out of a mates CAV Eco - no faults and my 24 still there -- also put mine in his and he didn't get any faults either - drove around for and hr like this and still no change its doing my piggin head in!!!!

[Disky]

Right,, some help needed here please peeps.

1995 2ltr GLS Eco

Finally got my fault code special tool from the stationary box ;) and bent it to cover A&B terminals

Getting this response.
12
37
29

Now call me a cynic, but have i made an arse of this ?,, i dont think so as i get code 12,, but for some strange reason i get 37 and 29 as well,,, and they pop up in that order.

Now from what i can see these are not the run of the mill fault codes, i did expect the crank or cam sensor as most do,, but this is a bummer,, where do i go from here,, what can be done to remedy this situation ?

PS , just bought me a haynes manual for it :)

And here is the symptoms of when the car is driving

Wont rev above 4500 rpm
Cuts out sometimes at junctions, revs drop right off
EML light does not "always" come on when engine is cold, but does when engine is warm

[Mark T]

37 is Check Light Voltage Low - funny, as you are using it to read the codes!!
29 isn't a valid code.

[Disky]

i found that 29 is number 5 injector or something,,,,, going back out armed with my special tool to try again :)

[Mark T]

i found that 29 is number 5 injector or something,,,,, going back out armed with my special tool to try again :)


LMAO.

Try reading the Simtec 56.1 ECU codes, not the Motronic M2.8 (V6) ones.

[Disky]

ok,, checked again it could be:

73 Mass air flow temperature Voltage low
92 Camshaft sensor Incorrect signal

now,, i could have been reading the codes back to front, if so,, this would now make sense :)

[MrBrow]

IS there any reason why on a 1.6 8v Cav the engine runs to 3k and just sits there when the pins are shorted? What have i done wrong? AAAAHHHHH!!!!

Never mind, the stepper motor wire was loose.

[tfox41]

Has anyone had codes 144 & 145? The car starts fine but i have a misfire?

Thanks

[g!nger]

How can I get a code WITHOUT pin 5/6 to connect to ?
Car is Vectra '99 2ltr diesel. On plug pins 1 and 6 are missing (which is where I saw another 'how to' your says 5&6 but without 6 I can't do much.
Is there another way, even by going to the ECU itself and putting a link in ? I'm well experinced / qualified to do such things but just don't have a circuit diagram or decent wiring details.
Thanks in advance

[ODB_Muff]

hey there,i got a vectra 1.8 ecotec and the EM light on all the time now.......checked for power at the cam sensor and found there was no power there,,should there be?,,,if so is there a fuse or relay i could check/change?.....oh and if so where might it be ..thanks in advance

[ODB_Muff]

ok checked the fault codes.....0340 cam sensor...........0100 mass air intake sensor...0110 air temp intake sensor..........can anyone tell me what 0505 code is?......thats the first one to appear but aint got a clue what it is :think......oh and are the air temp intake and mass air flow both located on the big pipe from the airfilter

[Mark T]

0505 is idle Air control valve.

There's too many there to guess what's wrong.

Get them reset and see what stays.
(Vaux Tech1/2 unfortunatley)

[chas2737]

mass air flow temperature?
what does this mean and how do i fix it? :crying_2:

[cavrestorer]

Hi there, i may sound a bit numb here :shake but how do u get the codes from the number of flashes?? i have done the paperclip test on my '92 cavalier sri2.0 8v and all i got was 1flash, pause, 9flashes but how do you work out what the fault code is from there?? :crying_2:

[cavrestorer]

aha :bananasmi , i have just found out whilst reading a post on here that i am getting fault code 19 Incorrect RPM signal (Crankshaft sensor - incorrect signal) I am pretty new to this and was wondering if anyone could explain where i need to go from here? do i need to replace the crankshaft sensor?? is there something simple i can do? any help would be greatly appreciated!! :D

[gammi0025]

i,ve just done the fault code test but all i get is a load of flashes no pauses or anything just continuas flashing???
help??

[krowlands]

I get the same...P reg Astra mk3, 1.6 auto, 16 pin Diag plug. Pins 5+6/4+6=continual flashing.

I'm reading that OBD2 came in around this time and a lot of sites say that codes on this age of setup can't be read without a code scanner..is this correct?

[LISAL]

My 99 Frontera 3.2 is getting code C0227 Left Front Wheel Sensor Erratic Signal. The sensor has been replaced but problem remains - any ideas gratefully received.

[laidback66]

Wheel based sensors usually throw up ptoblems relating to dirt contamination or loose connections due to vibration.

I take it you mean the light is still coming on?

I would remove the wheel and clean the whole area, and make sure all is secure.

[cav]

can anyone help me with code 24 vehicle speed signal i dont know where to start looking for this senser or what it does ive had a quick look on here and it says it could be at back of the speedo clock but my speedo works fine its a cavalier cdx ecotec

[cav]

anyone please help me

[waynephatg]

Try this for size..........

http://www.topbuzz.co.uk/info/fault_codes/fault_codes.htm

[scary-bob]

I just tried taking a fault code reading from our 1.6i cav, and the ecu light just blinked on/off on/off like a mad thing, with no sequence.
I tried it on our cally, and it worked fine, reporting code 12 as it should.
Is there a different procedure for the 1.6i?.
Thanks, Bob.

[tx200man]

is it possible to fault code these cars or is it a dealer job

[richkez]

can any one tell me how to do the paper clip thing on a 2000 1.6 club so i can read the error codes many thanks rich

[X16XEhell]

In my Astra (10 pin aldl) the paperclip test worked with lots of 12's meaning no electrical problems (12= 1 flash - pause - 2 flashes), I soon figured it out)) (eg 19= 1 flash - pause 9 flashes) My engine did run like shit too (over 2000rpm and rough) with the paperclip in so i did it without engine running. Afterwards I reset the ECU by turning ignition on and off 25 times (as I found out on here) I'm going to try the paperclip trick on my Mothers Mk3 Astra 1.4, she's used to the orange light being on most of the time.. I've been told that the paperclip method doesnt work on newer cars so I guess it wouldnt work on the Zafira - Vauxhall obviously don't like people to interfere with their newer cars and would rather we pay a premium for their laptop guy to hook up his box of tricks.

[X16XEhell]

By the way - credit to this site and the helpful knowledgeable people who use it. I've sorted no end of issues with my car thanks to good advice.

[neo_daz]

What would happen if you drove the car with the pins shorted , would it cause any damage ?

[stevemi]

myastra california 1.4 spi c14nz has a problem the fault code is 24 i changed the speed sensor (behind the speedo clock) reset the ecu but the code keeps coming back as 24 what more can i do its not on when i start the car but comes on a few miles up the road im totally stuck even the garage has no ideas

[tootershooter]

Hi I Have Just Followed The Excellent Forum Topic On Reading Fault Codes.

I Have A 1994 Cav Sri With Ecotec. 2.0 16v.

My Eml Has Come On Alot Lately And The Car Has Also Been Stalling Alot

The Codes Read As Follows: Code 73 - Mass Air Flow Temperature.

And... Code 92 - Camshaft Sensor Incorrect Signal.

Does Anyone Have Any Idea What Io Should Do Now I Have These Results?

Many Thanx

[monkeymayhem1975]

Hello all you lovely cav enthusiasts. Im trying to diag some probs on my wifes cav,I convinced her to have one as thats all ive ever owned and need to sort a few probs, Im familiar with the fault code readings and her model is the 1600 carb version with the ability to read fault codes, I need to know if anyone can list me the carb version faultcodes as I can only find 1600i, or are they pretty similar fault codes apart from the obvious extras?? cheers Guys and Gals:Cool2:

[marcusb164]

Hi My Name Is Marcus And I Have Just Joined And Am Looking For Some Help I Have Got A Corsa B Gsi N Reg And Am Sticking A Redtop In It But I Am Stuck With The Wiring I Have Disconected The Ecu From The Right H/s Near The Floor And Throttle [side Panel] And Pulled The Wiring Out But The Ecu Has Two Conections Instead Of One Like The Cav Has Got As I Am Not That Clued Up On Wiring Diagrams Can Anyone Help Me If They Have Done This Con Please Cheers Marcusb164

[moviestar]

This might come in handy for someone... The following link/download will give you all the fault codes and how to get the fault codes themselves for all/most makes and models of cars.

http://www.mediafire.com/?dj0h1ybz5sh

The file is a .pdf which you will need adobe acrobat reader to view. (37.5mb in size also)

[tx200man]

great link mate, cheers

[pete73]

Hi there, I have just recently bought this van. Now the problem i am haveing is im feeling a slight loss of power every now and then like diesel is blocked for 1 sec or so, but now it's also cutting out whilst driving (Car with spanner going through it sign lights up). It restarts right away and drives and the cutting out seems random.

Ive checked both topbuzz and the pdf file posted here and niether of these have these codes.

Vauxhall Combo 1.3 diesel 16v cdti 2005

ive been and got the codes they are as follows.

P1191 - Rail pressure to low

P1093 - Fuel system malfunction

P1191 - Rail Pressure range/performance

Ive tried numerous forums and no one seems to be able to tell me anything, is there anyone or anywhere i can go to get these codes read to say exactly what part i need to replace as ive put all my money into this van and am low on cash and now cant work.

The mechanic that did the reading told me his system doesnt have these codes as Vauxhall keeps these till the system is older, not sure how true that is or if he hasnt just paid to update his database?

ty for any posts in advance

regards peter
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