C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Iratic idle, slight stumble, suggestions?

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Old 06-01-2013, 07:56 PM
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wedgeheaded
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Default Iratic idle, slight stumble, suggestions?

I got my transmission back and I'm happy. Now, I have a slightly iratic idle and it stumbles just off idle. If it were a carbed car I'd be looking at the idle or transition circut. Being a 90 L98, I don't know. It runs great once I get past the problem area, which is, in gear and bearly moving, heavy in town trafic, like that, after that, it's great. I've cleaned and rebuilt the TB, replaced vac lines, checked for vac leak around the intake with starter fluid. I have a FSM but can't make heads or tails out of it.
Old 06-01-2013, 08:43 PM
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John A. Marker
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Have you check the TPS voltage?
Old 06-01-2013, 10:53 PM
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Originally Posted by John A. Marker
Have you check the TPS voltage?
No, I was reading up on it in my FSM though. I think that will be my next move.

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