Dealer service caused misfire?
Brought my car in for the free oil change and front brakes, dealer highly recommended the fuel injector cleaning and i decided to let them do it and now i get misfire on cylinder #3.
Now the misfire only happens at high boost ~17psi COBB Stg1+ aggressive while the STG1+ drive ~15psi is ok.
I was about to swap a coil etc to test but was wondering if anyone ever had issues with the fuel injector cleaning before?
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