TPI idles erratically,HELP

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Dec 1, 2001 | 08:31 AM

rallysport

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Joined: Jan 2000

Posts: 41

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From: monroe,Ga. usa

TPI idles erratically,HELP

when the car is warm it will idle about 1200 rpm then it will go down to about 600rpm. this wil happenthe whole time I drive it. I have looked for vacuum leaks and haven't found any yet. That was my first thought. Anyone have any other ideas? thanks

Dec 1, 2001 | 12:17 PM

8Mike9

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Joined: Jul 1999

Posts: 5,183

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From: Oakdale, Ca

Car: 89 IrocZ

Engine: L98-ish

Transmission: 700R4

Maybe need to clean the IAC passages in the TB (whole TB as well) and possiblibly look at the IAc and or control parameters.

Dec 3, 2001 | 12:34 PM

rallysport

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From: monroe,Ga. usa

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Dec 3, 2001 | 12:37 PM

tpi_roc

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Joined: Aug 2001

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From: Orygun

Just for good measure set your TPS too.

------------------
1985 Iroc-z, 14 second 305, new engine in the works.

Dec 3, 2001 | 04:42 PM

rondubbs

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Joined: Nov 1999

Posts: 700

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From: Staten Island, NY

o2 sensor

Dec 3, 2001 | 05:37 PM

David Petersen

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Joined: Jan 2001

Posts: 265

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From: Las Vegas, NV

Ditto to all the above, and jsut a thought..this may sound funny but if you are getting a bad MAF senser code and you replace the sensor and it keeps doing the same thing the burnoff relay is bad. My car was doing the exact same thing so I replaced the MAF which was the code up but the burnoff relay went south and the MAF was getting false readings. If you arn't getting the code this probably isn't your porblem.