1997 Toyota Celica when engine is cold,engine stalls/won't

1997 TOYOTA CELICA
98,000 MILES • 4 CYL • 2WD • AUTOMATIC
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MARC A.
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  • 1 POST
Hi. when the engine is cold i trouble getting the engine to idle. It will stall out until i keep the RPM's at 1,000 for about a minute or so.
Once the engine warms a bit, it idles fine-holding 800 RPM's. I replaced the throttle postioning sensor, and that seemed to work for a bit, then resorted back. it was doing it every 2nd or 3rd start(like some was sticking), now it is almost every start.
It is worse, of course, when the temperature outdoors is really cold.
I tried adjusting the throttle sensor, and that seemed to work, but then it reoccurs.
The engine has been tuned, and the the throttle body has been cleaned. I cannot seem to find an answer to this one.
I would really appreciate your advise.
Thank you, Marc Aldrich
Jan 7, 2008 at 5:15 PM
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KASEKENNY
  • CAR REPAIR CONTRIBUTOR
  • 18,907 POSTS
This sounds like the vehicle has a sticking idle control. I am attaching the testing for this below but here is a guide that will help with cleaning it as that is going to likely help with this issue.

https://www.2carpros.com/articles/idle-air-control-valve-service

Also, if the idle checks out then this guide will be what we need to run through to find out what next likely cause is.

https://www.2carpros.com/articles/engine-stalls

Please see the info attached info on how to test the valve. So, let's run through this info and let me know what you find.

Thanks
Nov 14, 2021 at 5:56 PM
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