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Author
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Topic: bad idle
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rnowacki
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Member # 686
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posted
 
 
What's the sensor that usually goes out and causes bad idle? Car is dying every time I come to a stop and "hunts" for 30+ seconds on a cold startup, back and forth between 500 and 1200 RPMs until it finds 850. Warm startups it will just die unless I get on the gas a little.
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AFR 165 heads, FRPP headers, MM Road & Track Suspension plus Torque-arm, 13" Baer's.
Posts: 52 | From: Discovery Bay, CA | Registered: Dec 2001
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JohnB
Tech Moderator
Member # 969
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posted
IAC valve. Bolted directly on the side of your throttle body. Pull it off, clean it out really well with carb or brake cleaner. It's probably full of carbon.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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rnowacki
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Member # 686
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posted
That's right... OK, I'll start there. Thank you.
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AFR 165 heads, FRPP headers, MM Road & Track Suspension plus Torque-arm, 13" Baer's.
Posts: 52 | From: Discovery Bay, CA | Registered: Dec 2001
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white1990stang
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Member # 2307
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posted
also try checking your tps with a volt meter. it should be at like .98, nothing over 1
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You must be fast, cause I was haullin ass when I passed you.
Posts: 1308 | From: martinez | Registered: Jan 2003
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six 5.0
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Member # 3153
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posted
Also check for vacume leaks
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IwishIwasan03COBRA!
Posts: 4425 | From: SAN MATEO | Registered: Aug 2003
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jaybquick
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Member # 4286
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posted
clean the throttle plate too with carb cleaner. As a last resort clean the MAF too. Do you have a K&N filter.
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91 Mustang GT ET: 11.92@115
66 Mustang ET: 11.43@119
01 Audi S4 ET: 10.8@131
05 Audi S4 ET: 11.9@116
08 Audi S5 ET: 11.9@118
Posts: 416 | From: Lathrop | Registered: Mar 2004
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