1992: rough idle when warm??
Thread Starter
Le Mans Master
Joined: Sep 2001
Posts: 5,404
Likes: 45
From: Arlington Tx
St. Jude Donor '08
1992: rough idle when warm??
My '92 runs like poo. I took it out Friday and once it got warmed up, the idle was horrible and surging, like it was gonna lurch forward and take off. It never died. The plug wires have maybe 7000 miles and were installed in '98. My pals said it sounded like it had an exhaust leak on the right side. would a leak on the right side between the header and head make it run that bad? I pulled it out of the garage to make room for other tinkering, and it seemed smoother, but not great. help?
Le Mans Master
Joined: Mar 2001
Posts: 7,999
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From: Life is just one big track event. Everything before and after is prep and warm-up and cool-down laps
Cruise-In III Veteran
Cruise-In IV Veteran
St. Jude Donor '12
Lots of things to check:
Coil, coil wire, plug wires, plugs
IAC, ICM, MAP sensor
Of course, check everything for good tight connections
ANd check for historical codes
Coil, coil wire, plug wires, plugs
IAC, ICM, MAP sensor
Of course, check everything for good tight connections
ANd check for historical codes
Le Mans Master
Joined: Jan 2006
Posts: 6,564
Likes: 6
From: Woodstock Georgia
Yes, an exhaust leak upstream of the 02 sensor can cause faulty readings to the computer, which in turn gives incorrect instructions to the injectors, etc. Scan it for codes and see what you get.
