k i was cruisng on the HGY at bout 70 or so.. not boostin. and cel came on..i didnt feel me thing.. so i check with key dance, got 12, 24, 31i guess 21 is kinda commn on boosted 420a's? or no , how do i fix thes probs? i checked gas cap its secure.. so what next..? thanx for the help420 5spd boosted
31 is an EVAP system leak. You might as well start replacing vac lines now. As for 24, hit up the home page for the PCM codes.