89 IROC-Z TPI Surging at Idle
08-27-2011, 11:14 PM
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89 IROC-Z TPI Surging at Idle I have a 1989 IROC-Z TPI. When I first start the car when it is cold it idles fine. When the car starts to warm up it starts surging?? Even when I drive it at a constant speed you can feel it missing. You give it some gas and it clears up?? I changed the TPS no change. Any Ideas.
