Hi all so today I got a flashing cel for about 10 seconds as the car came on boost. Was low on power and sounded wrong. CEL went off and car drove great until it came on boost and if did it again. 10 seconds flashing then nothing.
So I stopped, turned off the engine in the hope if would clear issue but NO it still did it . On the 4th attempt the CEL now stays on all the time .
Put the vas5054a on and bank 2 ecu has P0300 and P0311. Intermittent misfire detected and misfire on cylinder 11 intermittent. Bentley picking car up tomorrow. Before I poss get a huge bill, has anyone got any ideas?
The car idles great and runs off boost like it should.
Oh, and checking the last service receipt them plugs they were apparently changed June 2020. Howevwe all the plenum bolts are rust and the top is full of crud and dead flies. Does that look like it was removed 8 months ago. The car is dry stored and with Covid has not been driven much since then.
Frank

 

No, that doesn't look like it was removed!

C

 

Please, please be aware that when the check engine light is FLASHING you most definitely should let off the throttle and pull to the side of the road and shut it down, then after a few minutes restart the engine, it you continue to drive on and off the throttle causing FLASHING cell, you will cause damage to the mis-firing cylinders, and then to the catalytic converter tied to the bank of mis-fire.

And I agree, that does not look like it has been removed lately, unless you have driven through a salt covered winter road.
If I was doing the tune up and your intake looked like that, I would be taking it to the bench for a good cleaning and buff it to a shine. 🤪

But that's just me...

Johnny

 

Thats what I thought. Surly they would have vacuumed the plenum before removing and those rust bolts with corroded hex drive should have been changed for new ones.
CEL flashed as I lifted off and flashed for about 10 seconds when I eased off and was at cruise not power. Its on all the time now.
.

 

Looks neglected.

 

And this car has everything done at Bentley no matter what. Have to admit to being a little disappointed at how full of debris the top of the inlet plenum is. If I had to remove the plenum it would have been vacuum out first then blown with an air gun. New bolts for sure as they look like there about to strip the hex head off the top of the bolt there so badly corroded.
The car sits in a 40ft barn garage over winter and hasn't been driven since its last service and new plugs(????).

 

I forgot to say as well quite strange really, although I had 1/4 tank of fuel the Low fuel message and warning came on when I first heard a pop from the exhaust as it came on boost for the first time. When I stopped the car for the first time to see if that cleared the misfire the fuel warning never came back on again. I did put a 1/2 tank in her after that just in case.

 

Have you got the invoice?

C

 

Yes, price for the plugs but no labour.
Bentley looking into it .

 

Just for clarification, did you pop the cover off, or is it missing ?

Johnny

.

 

No, I deliberately took the cover off too see if anything had been disturbed. You can usually tell if something has been replaced or taken apart by how clean or not as in this case..

 

That was exactly my thought! Get Crewe involved

C

 

So . Got car back from bentley today. It was no11 coil pack that failed.
I bought a spare coil pack off them to keep in case, the other 11 coil packs are 13 years old. Even with that spare coil pack the total bill was £147.28 Im very surprised and pleased. Ive never had such a small bill for the gt before.
😀

 

Well that's a result then!

C

 

It is. There originals are from 2008 so done well.
As to the plugs, they said they were done so that's that. I think something was said privately in house about the condition of the plenum. Bentley Glasgow are so good , its not worth saying any more about it.
I'm never unhappy with their work.