Engine dies after warm startup
01-27-2011, 09:16 PM
#1
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iTrader: (3)
Join Date: Mar 2008
Location: San Jose
Posts: 411
Car Info: 2005 WRB WRX
Engine dies after warm startup
Hey guys I've had this problem for about two weeks now. When I start my car cold, it starts up fine and idles fine. But when the engine is warm/hot and I go to start it up, it starts fine, but it doesn't hold idle and dies. I have to try it again and give it a little gas to stay running. The funny thing is, this never happened until my ecu got reset when my battery died. Also, I recently switched out my fully catless exhaust back to stock prior to my battery dying. I changed my spark plugs today too and cleaned my MAF sensor to eliminate a CEL I had come on two days ago. Anyone have any idea what this may be, or have had a similar problem? I've read that it could be a vacuum leak, others say it could be a bad PCV valve, and some told me I just need a tune. Any help would be greatly appreciated. Thanks guys!
01-27-2011, 09:51 PM
#2
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Join Date: Jan 2010
Location: San Jose, CA
Posts: 85
Car Info: 1991 Mitsubishi Galant VR-4
I would assume its a idle relearn issue you are having although with subies that I have worked on, it never really did that or you really messed up the the maf by cleaning it instead of replacing it.
01-28-2011, 10:26 AM
#5
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Join Date: Jan 2007
Location: Mazda NAO
Posts: 3,165
Car Info: 1969 BMW R75/5 & Work Whip
This is the worst advice I've ever heard. It is much smarter to ask an internet forum and try everything you can think of BEFORE going to a shop. It isn't like you'll do more harm than good by wasting your time and money trying to get the interwebs to fix your problem. After all, there HAS to be SOMEONE who has a sister that has a friend that once knew a guy that might have had the same problem.
Am I right?
P.S. For those of you that don't know... Paul is right. GET A REAL DIAGNOSIS!!!!
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brucelee
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