Could literally be anything, false knock? Did he put known high octane to check?
Maybe there is an issue?
Does it have headers or aftermarket x pipe? They can false knock too.
your tuner should be able to diagnose what’s goin on easily
Maybe there is an issue?
Does it have headers or aftermarket x pipe? They can false knock too.
your tuner should be able to diagnose what’s goin on easily
