Im not a pro but Id recommend changing your exhaust gas recirculation valve(EGR)
It actually recirculates a small portion of exhaust fumes back into the intake while cruising or at high revs to lower combustion temps. They can get clogged up or rsuted and stay closed.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.