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RPM surging
I have a 85 IROC TPI. When the engine is cold it runs just fine. But when it warms up the RPM start's to surge with me. I will take any help I can get please.
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I guess no one can help me with this??
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Is the engine light on?
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Cold engine/open loop ok. Warm engine/closed loop not ok. Likely to be a bad temperature sensor, 02 sensor, etc. Even if the check engine light isn't on, flash for codes. Sometimes an error can be present without the light being on. https://camaroforums.com/forum/82-92...d-codes-20385/
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what year, engine, fuel delivery type?
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The engine a 350/330 crate engine. I'm running SLP runners and headers, BBK 52mm throttle body.
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Since aftermarket parts, spray all junctions of intake system with WD40, starting fluid, etc., to find a leak. Engine rpm will change when sprayed.
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Originally Posted by LETSROC
(Post 668560)
I have a 85 IROC TPI. When the engine is cold it runs just fine. But when it warms up the RPM start's to surge with me. I will take any help I can get please.
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The car ran fine the frist couple of months. Then I was driven it 1 day and it just started doing it.
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Originally Posted by birdman11
(Post 668970)
How long has it been doing this? I see your engine is not stock. The cam in that engine is much bigger than a stock TPI cam. You may need a custom chip
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