I have a 1990 Olds Cutlass Supreme. When it sarts in the morning it runs fine untill it gets warmed up, then it starts to missfire. I can smell gas also. Have replaced IAC valve, Temp. Sensor, and Ignition module. EGR valve was removed and cleaned. When I replaced the ignition module, all seemed well. Finished by putting new plugs and wires on it. Ran great for about a week and a half, then started to missfire again. After the car warms up you can shut it down, wait 5 to 10 minutes, then it runs like a new car all day long. It has a 3.1litre V-6. I have been around cars and repaired them all my life, but this one has me stumped. Any ideas?
have the same problem?
Wednesday, November 13th, 2013 AT 12:02 PM