2002 Pontiac Grand Prix Q&A
2002 Pontiac Grand Prix Question: Code p0442
You can take it to a shop and ask for a "smoke test". This will usually locate the leaks location. - csubak30
Check engine came on (02 Grand prix 3.8L), Cleared code P0442 (Small EVAP Leak), Check engine came back on and noticed gas cap gasket was cracked, Replaced...
I have codes p0440 and p0442