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Old Dec 10, 2013 | 11:18 AM
  #1  
IzaguirreZ28's Avatar
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Default LS1 Help!

I have a 02' Z28 Camaro and im having some engine probs.
1st when idleing my car well rev up to a higher rpm without and well drop down to 500rpm stepping on gas.
(im thinking it has to do something with the Throttle body)

2nd is my Idle sound, As wicked and aggressive as it sounds.Its loping as if i had a cam in it. I only have long tubes and cut outs.

would anybody have any ideas of what are causing these problems.
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Old Dec 10, 2013 | 02:08 PM
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Sales3@Texas-Speed's Avatar
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That sounds like it could be the Idle Air Control valve being stuck. That's the part that has a plunger that goes into the throttle body.

Lonnie
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Old Dec 13, 2013 | 04:06 PM
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Check for vacuum leaks also!
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Old Dec 13, 2013 | 05:11 PM
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z28SSilvest's Avatar
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Mine would do that when it was raining really hard out. Check your ECU (top left of the engine bay if staring at your car from the front) Just take the two bolts off and check to see if there is any water in there. If that isn't the problem, the ones mentioned above me, and you aren't throwing codes, you can check your cam sensor or crank angle sensor.
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