sniperi311 Posted October 19, 2005 Report Share Posted October 19, 2005 ive got a 93 olds cutlass supreme, v6 3.1, when i turn my car on, hot or cold, doesnt matter if ive been drivin it for a while or not, my car starts idling and like 1.25 than it starts shooting up to 2 and 2.5 rpms....my service engine soon light comes on, but flashes no codes, ive got obd 1, if i get in my car and start it, and put it right in drive or reverse, it doesnt shoot up in rpms, im not sure whats goin on, oh the car does drive fine and everything, just this problem, thats bout all Quote Link to comment Share on other sites More sharing options...
THe_DeTAiL3R Posted October 19, 2005 Report Share Posted October 19, 2005 Sounds like a vacuum leak to me. Mine idled REALLY high when I forgot to tighten the throttlebody, causing a huge leak, and the SES light came on. Quote Link to comment Share on other sites More sharing options...
stockgp Posted October 19, 2005 Report Share Posted October 19, 2005 werd. mine did that when the vacuum line come off the brake booster Quote Link to comment Share on other sites More sharing options...
Pabz Posted October 19, 2005 Report Share Posted October 19, 2005 check for vacuum leak, if not then its the IAC, may want to clean it. Then do the idle relearn. This happened to me too. I followed a different relearn then that in the faq. Disconnect battery, reconnect ~30 sec later, start car and let run until warmed up and run for another 5 mins, shut off for 10-20 sec, restart until fans come on. Done. If its still idling high, use carb cleaner to check for vacuum leak. Quote Link to comment Share on other sites More sharing options...
Gearhead43 Posted October 19, 2005 Report Share Posted October 19, 2005 Yes.... If the Idle relearn doesn't do the trick (after about 3 tries) then you may well have an intake leak. Quote Link to comment Share on other sites More sharing options...
sniperi311 Posted October 20, 2005 Author Report Share Posted October 20, 2005 tried an idle relearn a couple weeks ago, started idling fine, cuz it messed up some, now its doing this, ill try another one though, how do i use carb cleaner for a leak?...thanx Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted October 20, 2005 Report Share Posted October 20, 2005 You said the SES light came on, but no codes.. are you letting it flash Code 12 3 times? It sounds almost like the TPS being disconnected or faulty. Quote Link to comment Share on other sites More sharing options...
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