1990 Oldsmobile Cutlass Supreme Q&A
1990 Oldsmobile Cutlass Supreme Question: not a 1990 its a 1989
Sounds like your Catalytic Converter may have gone bad, which can be problem on this vintage GM cars. They fail and plug up. Have a shop do a back pressure check. that will answer this question. Best of Luck! - dandd
1989 V6 2.8 FI - runs 5 minutes and then turns off - have checked battery, alt, starter, fuel pump, throttle, EGR ~ no TROUBLE codes. ANY ideas would be great?