[Chieflottsadough]

Hi guys, first post here although I’ve often gone to these forums to see similar issues that have been resolved.

initially I had an oil leak that caused some smoke to come from engine bay, mechanics filled up oil and did a gasket seal.
They also replaced engine mounts and transmission support due to vibrations during idle and reverse gear switch.

got the car back initially under boost was fine, but after a short drive it was then sputtering under high revs.

took car back to mechanics and they said there was oil leaking onto a spark plug, replaced all spark plugs and spark plug seal.

git car back again and now the sputtering is happening under high revs but even at lower speeds now, the moment I go to give it some the sputtering interiors my fun.

After scanning vehicle there are no error codes

any advice please help

 

[JohnSub2013sti]

I'd recommend doing a short log that is logging the issue.

AFR, Final Fueling Base, Boost, Target Boost, Load, IAM, FKC, FKL, Maf V, Fuel Learn, Fuel Correct, Injector DC, Missfires (all 4 cylinders)
Log this and then upload the log to datazap.me | Fast, Free, Interactive Datalogs . This should at least show where the issue is happening or at least confirm on what cylinder.

That being said; things to check for a misfire.

1. Spark Plugs - Make sure there properly gaped and not old.
2. Spark Plug Coil - Check condition
3. Injectors
4. Valves - compression / leakdown test
5. Rings - compression / leakdown test

 

[Chieflottsadough]

I'd recommend doing a short log that is logging the issue.

AFR, Final Fueling Base, Boost, Target Boost, Load, IAM, FKC, FKL, Maf V, Fuel Learn, Fuel Correct, Injector DC, Missfires (all 4 cylinders)
Log this and then upload the log to datazap.me | Fast, Free, Interactive Datalogs . This should at least show where the issue is happening or at least confirm on what cylinder.

That being said; things to check for a misfire.

1. Spark Plugs - Make sure there properly gaped and not old.
2. Spark Plug Coil - Check condition
3. Injectors
4. Valves - compression / leakdown test
5. Rings - compression / leakdown test

Hi John thanks for taking time to reply, please forgive my ignorance but what is a short log?