hi got a problem with my s3, its the APY engine,
standard engine other than a remap
sometime on idle its sounds like its misfiring, and the main problem is its not boosting right, 1st and 2nd gear all good but in 3rd and 4th gear when at 3200rpm it seems to lose alot of power, like if the turbo wasnt working.
also kicks alittle black smoke.
first thoughts is boost leak but can see any or hear any, i have had it plugged in but cant find anything there.
anyone had same problem or help me out before putting money into it