3rd Gen / L98 Engine Tech 1982 - 1992 Engine Related

HELP, bad idle, hesitation

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Old Nov 1, 2005 | 03:18 PM
  #1  
staleyracing's Avatar
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Joined: Sep 2005
Posts: 80
From: Tulsa, OK
Unhappy HELP, fast idle, hesitation

My idle will speed up after a hesitation. It will goto between 1500-2000rpms when in park. Its like a serge, it will dip down and then idle up. Ive cleaned the TPI (throttle body), changed the TPS, Ox. Sensor, Plugs and wires, cap and rotor. and I cant find any vacuum leaks anywhere. All the hoses are in good shape. I put in a new fuel filter. To top it off there isnt a SES light code so im open for new ideas. Thanks

josh

Last edited by staleyracing; Nov 1, 2005 at 04:32 PM.
Old Nov 1, 2005 | 04:33 PM
  #2  
91-Z28-L98's Avatar
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From: Tampa, FL
Re: HELP, bad idle, hesitation

Check timing.
Old Nov 2, 2005 | 12:14 AM
  #3  
V8Rumble's Avatar
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From: A half-fender ahead, & pulling...
Re: HELP, bad idle, hesitation

I'm guessing that you'll probably want to take a look at your IAC. Adjusting it is pretty easy.

Good luck, let us know how it works out.
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