Single turbo n54 misfire cyl 5

[jackobrien2256]

Thanks for the advice. Will get in touch with Levan and do a follow up if anything changes.

Did a full adaptation reset. Car felt a lot better but I could still feel a small mis at higher rpms and boost. Not nearly as bad as before.

 

[houtan]

any updates?

 

[jackobrien2256]

any updates?

Come to find out the previous owner of the car had put a knock off Tial wastegate on the car. I replaced it with a brand new 44mm Tial and my problems went away. Car runs great now.

 

[seb.apprenti]

Come to find out the previous owner of the car had put a knock off Tial wastegate on the car. I replaced it with a brand new 44mm Tial and my problems went away. Car runs great now.

hi, how can tial cause misfire? i dont understand

 

[135boost]

Hi
my opinion is that all is caused by stupidity lean condition, STFT 1 and 2 is maxxed out and AFT is at 17 so for sure
it must hesitate and misfire

just after it start to build boost it start to struggle with fuel, there is STFT scalars what can correct that to a value of 34 where after it run lean. you have AFR after that at 17 what will blow your engine for sure.

that tune is for sure done to work with combined DI and PI and can`t be used withoit pi

lack of fuel is some 50% so it`s not a small quantity..