Ok where to start I have a 1990 olds cutlass sup. with a 2.3 HO out of a 92 achiva with about 30,000 on the new motor. Now the problem i have been haveing truble with idle mainly. it will idle up and down a bit in netural/park but when i put in gear it will stall after a few min running unless i keep my foot on the gass a bit. i also have truble starting it. it will go to start but in mid turnover it will stop and if i do it a few times it will back fire on me. also when i have it running my rpm gauge which is a digtial read out will flicker all the way up a few times and when it does i can feel the car shutter a bit then it will die. i have had this car in and out of the shop and no one can tell me what it is. i have spent way to much on this car to just give up. i just repalced the head gasket 6 months ago and have had this trouble every since then and a bit before. but before the head gasket went the idle was way to high. i have replaced tps, map,O2,IAC,new igiton coil, and igiton control modual. and still have all this trouble. i was just told that it might be timing or a Torque Converter Lock Up Solenoid what ever that is. so if u can give me any help let me know or have any more ?s just ask
Jul 18, 2007 at 6:26 PM