I Have A Corsica That Stalls When The Engine Is Cold. Looked For Broken Vacuum Hoses. That Turned Up Nothing. Once the engine has warmed up, after about 15 minutes, the car runs okay.
My friend replaced the coolant temperature sensor. Unfortunatley, that did not solve the problem. He has since put back the original sensor.
I and a friend are working on this problem. He also replaced the IAT and the MAP sensors and checked for vacuum leaks, again. None of these fixes helped.
So, let me describe the problem again. The car starts okay and when the engine is cold it idles rough. This is while it sits in the driveway. When I press on the gas in the driveway soon after engine start, the engine does not rev up. It hesitates for about 5 seconds then it revs up ( This symptom has mostly gone away ). If I'm driving down the road with a cold engine, this is a problem. When I slow down and then speed up, the car behaves like its almost going to stall. See first and second speed bump.
So, can you make other suggestions on what may be wrong with the car?
It's a 1993 2.2 liter (VIN 4) LN2 carline PFI 4 manual trans. A167.ds
The log contains a O2 warning. For the first time, I got the check engine light to go on. Was driving down interstate. Light lasted 15 seconds. Was about 10 minutes from start of car. Engine was warm before start. The error occurred before the start of this log.
Here is the log:
started car. revved engine several time. very minor hesitation once.
rolled in reverse down to street
6:04 ok Put in 1st gear to go forward
6:14 stalled just past the end of driveway
7:01 restarted
8:04 sniffling???
8:42 first bump Tends to nearly stall or almost stall at this point
9:26 second bump Tends to be a problem too
9:46 Stop sign to secondary road turned right
drove around my subdivision
17:00 possible speed bump
18:00 driving on a four lane road at 40 mph. noticed that loop had closed.
Robert
Happy Holidays
Last edited by historystamp; 12-24-2011 at 11:54 PM.
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