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Discussion Starter #1
Hi all I was wondering if anyone could help me, in looking for a diagram for the ecu on a Z14exp preferably with wire colours thanks
 

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i'm fairly certain it's FE21,FE22&FE30
 

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Discussion Starter #4
Hi thanks for the reply yes they are the fuses, just would be easier to know the pins at the ecu to rule out the wiring
 

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Fuse FE 30 Black wire supplies Pin 51 in the ecu plug thats nearest to the front of the car.. Fuse FE21 Red/Blue wire supplies pins 33 and 49 of the same plug and is usually the one that corrodes about 6 inches from the ecu inside the plastic loom cover.. Fuse FE 22 Red wire supplies Pin 18 again in the same plug.
 

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Beat me to it Andy lol
 

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Discussion Starter #8
Thanks guys just what I was looking for.
Suppose I had better start from the top.
Car is a astra H 06 1.4 manual.
Last week car started and wouldn't rev up over 2k rpm so turned off and wouldn't restart no crank or noise at all except relays clicking under the bonnet.
Car with spanner through was on the dash constantly on and all normal lights.
Tried my obd but it said no ignition present, checked all fuses and relays,
And fuse board for corrosion,
Had a local VAUXHALL specialist plug his laptop in and all systems are fine ie immobiliser etc but no communication with ecu. He checked all connections and said it's either ecu failure or no power to the ecu ether way he would need to tow it to his workshop Wednesday and investigate.
I have checked the 3 fuses and wires to the ecu as described and all are in good order and have 12v is there anything else to check or is it a job for ecu repair Man?
 

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Check the Earth wire thats attached to the ecu body, its a small black wire, it has a habit of failing, just bolt a new wire using any of the ecu mounting bolts and run it straight to the battery negative terminal, i usually use a jump lead, just make sure its a good contact.
 

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Discussion Starter #10
Thanks Andy I've just tried the earth and still nothing is there anything else it could be or is it a definite ecu failure?
 

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Hi I have the same problem I turn ignition on and no lights come on dash board I try and start the car no crank or noise at all except relays clicking underthebonnet but the radio works and the interior light also my head lights come on please help thanks
 

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It seem these cars are useless
I have the same problem on my astra h 1.6 sxi
I just recently had a black box fitted by the insurance
The engerneer who fitted it started the car before the installation
Then couldn't start it after
He told me it was the ignition switch
I've check all the fuses and relays
And all seem fine
I had a diagnostic test and the issue is no communication with ecu but can communicate with the rest of the car
When I put the key in and turn it I get all lights as normal and the clicks from the relays

Can anyone give me any advise
Thanks
 

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Wow, so he fuc£ed your car up and blamed the ignition switch, get on the phone and tell them they need to come back and fix his £uck up, wont be the first time one of these w&nkers has £ucked someones car up, he has probably tapped into one of the Canbus wires.
 

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Wow, so he fuc£ed your car up and blamed the ignition switch, get on the phone and tell them they need to come back and fix his £uck up, wont be the first time one of these w&nkers has £ucked someones car up, he has probably tapped into one of the Canbus wires.
I've been on phone and even had the manager out to the car and they says it's not their fault its a issue with the car
They connected 3 wires a red to red
Black to black
And a white to brown
 

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Yes but still would not run
I'm going to get a reset ecu and get it coded in and see if that works
But is there any thing else you can recommend for me to check before doing so
I've checked the start motor and its ok
I've check the each wire on the wiring loom from the ecu to just near the fuse box for any breaks or corrosion and are all ok
I've checked all fuses and relays and are all ok
So I don't know what to check next
 
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