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[TheBoy]

prestigetravel, I would advise you to trust Marks DTM Calib's advice here.  I would trust him over any Vauxhall spanner monkey (sorry, Vauxhall Technician) on any Vauxhall car related problem

[prestigetravel]

THEIR IS A 2.6 VECTRA, THEIR ARE 7 FOR SALE ON EBAY. AND 36 ON AUTOTRADER. SAME ENGINE Y26SE, SAME ECU AS LISTED BY BOSCH. LISTED IN PARKERS AS A MODEL AS WELL.
THE THROTTLE ISSUES I HAVE READ ABOUT RELATE TO 2.2,2.6 AND 3.2 MODELS {NEWER MODELS)

[Marks DTM Calib]

Sorry....reading 2.2...

But lets put it another way....how many 2.6 V6's (and 3.2's) come through these pages, and how many have I and others had our hands on.....

[prestigetravel]

I AM HERE TO LISTEN FOR ADVICE. I HAVE MINIMAL KNOWLEDGE OF DIAGNOSTICS SYSTEMS BUT I WAS A FULLY QUALIFIED MECHANIC FOR MANY YEARS AND STILL TINKER AND SELL CARS AS A HOBBY,  CAR NOT WORKING, CHANGE ECU, CAR WORKING. SURELY ECU WAS U/S!?

[TheBoy]

I AM HERE TO LISTEN FOR ADVICE. I HAVE MINIMAL KNOWLEDGE OF DIAGNOSTICS SYSTEMS BUT I WAS A FULLY QUALIFIED MECHANIC FOR MANY YEARS AND STILL TINKER AND SELL CARS AS A HOBBY,  CAR NOT WORKING, CHANGE ECU, CAR WORKING. SURELY ECU WAS U/S!?

But car still isn't working

[prestigetravel]

ENOUGH OF THAT, THE LAD I BOUGHT THE CAR OFF HAD CHANGED TH PLUGS THE PREVIOUS DAY TO CAR PACKING IN.
HAVE LOOKED TO SEE IF EVERYTHING ON PROPERLY,SEEMS OK, THE FAULT OF PLUG MISFIRE ON 1,3 AND 5, WOULD JUST 1 OF THESE PLUGS MISSING SHOW UP ALL 3 TO BE FAULTY AS CAR GOES OK, ONLY TINY VARIATION AT IDLE?

[prestigetravel]

CAR IS WORKING JUST SHOWING FAULTS

[TheBoy]

CAR IS WORKING JUST SHOWING FAULTS

Is the car running absolutely fine?  If so, the stored fault codes will disappear after a set number of good, clean starts. Or can be cleared with a code reader


I'm not aware of any known problems of TPS damaging ECUs. ECUs are built to be robust.  Engine ECU failure on Omegas is virtually unheard of.

[Marks DTM Calib]

Please turn the caps lock off....

As already said....just because something was changed and the behaviour changed, does not mean its the route fault.

It could be a broken wire in the loom etc and the process of changing the ECU has disturbed it and changed the behaviour.....it does not mean it will not come back.

If the ECU was faulty, the repalcement should mean you are now in a fault free condition, and you are not and hence the inference is that there is a more underlying fault and it could have been this that resulted in the ecu death.....or maybe the ecu is not part of the equation at all.

As also already said, there are 3 seperate coils in the coil pack, with a common supply. And as we already know....you dont get 3 fail all at the same time.

Plus you have codes relating to teh throttle body.

Hence the sudgestion to check the chassis and supply connections etc.

[prestigetravel]

I DROVE CAR FOR SEVERAL MILES AND IT WAS ONLY WHEN I PULLED BACK UP AT HOME THE EML CAME ON. DOES SEEM A BIT HESITANT WHEN YOU PUT YOUR FOOT DOWN COMPARED TO OTHER OMEGAS IVE HAD (THESE BEING 2.5 V6 ) SO HAVING NEVER DRIVEN A 2.6 NOT SURE ABOUT RESPONSE.
DEFINITELY DIPPING OCCASSIONALLY AT IDLE

[TheBoy]

Please turn the caps lock off....

As already said....just because something was changed and the behaviour changed, does not mean its the route fault.

It could be a broken wire in the loom etc and the process of changing the ECU has disturbed it and changed the behaviour.....it does not mean it will not come back.

If the ECU was faulty, the repalcement should mean you are now in a fault free condition, and you are not and hence the inference is that there is a more underlying fault and it could have been this that resulted in the ecu death.....or maybe the ecu is not part of the equation at all.

As also already said, there are 3 seperate coils in the coil pack, with a common supply. And as we already know....you dont get 3 fail all at the same time.

Plus you have codes relating to teh throttle body.

Hence the sudgestion to check the chassis and supply connections etc.

Also, replacement ECU would, naturally, reset BLM values, which may be enough to allow it to run (until the BLM drift off again).  Maybe a BLM reset on the old ECU would have done the same (possibly temporary?) fix.

[Marks DTM Calib]

Please turn the caps lock off....

As already said....just because something was changed and the behaviour changed, does not mean its the route fault.

It could be a broken wire in the loom etc and the process of changing the ECU has disturbed it and changed the behaviour.....it does not mean it will not come back.

If the ECU was faulty, the repalcement should mean you are now in a fault free condition, and you are not and hence the inference is that there is a more underlying fault and it could have been this that resulted in the ecu death.....or maybe the ecu is not part of the equation at all.

As also already said, there are 3 seperate coils in the coil pack, with a common supply. And as we already know....you dont get 3 fail all at the same time.

Plus you have codes relating to teh throttle body.

Hence the sudgestion to check the chassis and supply connections etc.

Also, replacement ECU would, naturally, reset BLM values, which may be enough to allow it to run (until the BLM drift off again).  Maybe a BLM reset on the old ECU would have done the same (possibly temporary?) fix.

Yes, quite possibly. Interestingly, on many of the ECU's....starting the engine with the lambda disconnected and then re-connecting it will also reset the block learn values as the ECU assumes the lambda has been replaced and hence has to re-learn.

Tried this on a few whilst checking the values with T2 and it does work.

[TheBoy]

Please turn the caps lock off....

As already said....just because something was changed and the behaviour changed, does not mean its the route fault.

It could be a broken wire in the loom etc and the process of changing the ECU has disturbed it and changed the behaviour.....it does not mean it will not come back.

If the ECU was faulty, the repalcement should mean you are now in a fault free condition, and you are not and hence the inference is that there is a more underlying fault and it could have been this that resulted in the ecu death.....or maybe the ecu is not part of the equation at all.

As also already said, there are 3 seperate coils in the coil pack, with a common supply. And as we already know....you dont get 3 fail all at the same time.

Plus you have codes relating to teh throttle body.

Hence the sudgestion to check the chassis and supply connections etc.

Also, replacement ECU would, naturally, reset BLM values, which may be enough to allow it to run (until the BLM drift off again).  Maybe a BLM reset on the old ECU would have done the same (possibly temporary?) fix.

Yes, quite possibly. Interestingly, on many of the ECU's....starting the engine with the lambda disconnected and then re-connecting it will also reset the block learn values as the ECU assumes the lambda has been replaced and hence has to re-learn.

Tried this on a few whilst checking the values with T2 and it does work.

Thats a useful bit of info that could save people a trip to a tech2

[prestigetravel]

with the throttle issues they are stating switch a and switch b. i assume these to be the potentiometer switches on pedal and throttle body on plenum. are these worth changing do you think?

[TheBoy]

with the throttle issues they are stating switch a and switch b. i assume these to be the potentiometer switches on pedal and throttle body on plenum. are these worth changing do you think?

Before replacing those, you want to do a live data check on them