The differential pressure sensor readings look ok, whats the definition of the P2002 code, the are 3.. High differential pressure, Low differential pressure and Regeneration cycle interrupted, going by your description i would say its the regen cycle interrupted.

 

differential pressure below thresold

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with the scanmyopel application.. i saw p2002 high diferrential pressure..before opel erase the faults it was green and back to normal..strange..

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in photo with the red dot was with the spanner on

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and this is after the garage Opel.. and thank you for your response!! ☺

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The egr was probably stuck and its now worked free and is working correctly, thats why its showing as a 'Not present' fault, you could try some system cleaner in your fuel, ... in the figures above its showing temp sensor 1 at 5V, does your car have 1 or 2 temp sensors.

 

i think yes im not sure one front and one back propably

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If it has 2 then i should not be at 5v, i think you probably only have the 1, if you had 2 sensors then you would have a High Voltage fault for temp sensor 1.

 

ok then..was the egr that stuck and the regeneration is not succesfull? and the readings are normal? opel told not to change anything until the light will be back on..if yes then you change the egr valve

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Yes i would but i would run some cleaner through the fuel system first, this may clean the egr enough for it to return to working correctly, also its cheaper than a new valve.

 

after le spanner of the egr i pay a mec to clean it but nothing changed before sunday after a trip for 40klm with the limp mode the light gone and now is working the car pretty good i think better than before

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Maybe he only cleaned the top of the valve where the solenoid sits..this would make the valve work better.. you then drove it on the 40klm trip which may have cleaned the carbon build up from the lower part of the valve, where the valve seats, if its running ok now then put some cleaner in and just monitor it for now, hopefully it will be ok.,

 

he made 6 hours..because the valve in the corsa d is difficult operation..he then removed the hall valve out and cleaned with carbon cleaner..he cleaned also (without remove)the intake and the throtle body because also have carbon build up.. therefore is strange that this not made anything in first place..i will take your advise and put a cleaner..

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The differential pressure sensor readings look ok, whats the definition of the P2002 code, the are 3.. High differential pressure, Low differential pressure and Regeneration cycle interrupted, going by your description i would say its the regen cycle interrupted.

today after 50klm in autoroute limp mode again and same code p2002 high differential pressure.. i erased the code and it came back after 10klm i erased again.. i think its not egr but the filter itself.. now 690klm at 70% saturation for me is normal but pressure is 2-4kpa at idle sometimes 1kpa

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Whats the pressure at 2000 rpm and then at full throttle, go check it now and post what you have.

 

2-4 kpa at idle is high and does point towards the dpf needing a static regen if it wont do one when driving.

 

at 2000rpm 11 or 12 im not sure i will check tommorow..then for regen it takes place for an opel corsa d at 80% saturation but im not there yet..71%

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at full full throttle with 5 at 160klm/h as i tested today 60 61kpa

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but i erase the fault and the car drives normal with power nothing like before even when erased the faults i had problem with accelaration

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The pressures are high..if it keeps flagging the fault it may not do a regen, if thats the case the do a static one, once this is completed drive it on the road to initiate a dynamic regen, this should then cure the fault.
When you erase the fault it will take a while for the ecu to figure out the pressures to high, this is ok but keep an eye on the saturation level..you really need to try and make it regen.

 

yes but whats happening..in vauxhall manuals says that thw regenaration happening when the saturation of the dpf ia at 80%..today i have passed the 80% load the 70degree coolant the 600 exhaust temp but the saturation was at 69%..

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sooo no regen because i didnt meet the full conditions..

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i pay opel 27 euros for a static that i think they didnt made it because when i took the car the obd says 170klm from the last regen and saturation at 32% and i left the car there with 29%..

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at 2000rpm is 9kpa

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689klm and 72% saturation is normal for me..because in the manuals says between 600-1000klm regens..

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Before you do anything else you need to check your oil level, if your saturation level is going up and down like you say then it must be trying to regen but then after a short while its failing, this will dump diesel from the failed regen into the sump, if it gets to high the engine will runaway and destroy itself.

If the differential pressure in the screen shot above is correct then its way to high at idle, you either have a failed sensor or the df is blocked and needs cleaning or a regen.. do you know anyone who can manually check the dpf back pressure with a gauge rather than relying on the sensor.

 

Before you do anything else you need to check your oil level, if your saturation level is going up and down like you say then it must be trying to regen but then after a short while its failing, this will dump diesel from the failed regen into the sump, if it gets to high the engine will runaway and destroy itself.

If the differential pressure in the screen shot above is correct then its way to high at idle, you either have a failed sensor or the df is blocked and needs cleaning or a regen.. do you know anyone who can manually check the dpf back pressure with a gauge rather than relying on the sensor.

after regen andyl.. 17% satur..0kpa and 3kpa at 2500rpm..at 4000rpm 7kpa.. after 81% saturation i put diesel 25litre et apre 2klm the temp of exsaust up to 700c quickly..and it regen

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the problem is at 60%saturation begins thz diferrential pressur going up.. and now at WOT is 15 ΜΑΧ..the oil is very good.. i dont thing it fails..because if the saturation isnt 80% does begin regen

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