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

rough idle

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Old Dec 14, 2001 | 11:59 AM
  #1  
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Jim D
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Default rough idle

When I first start my car the idle is a little rough, but after 30 to 60 seconds it smooths out. There is 67K on the car , I intend to have the injectors reconditioned, The dealer installed new opti spark, plugs, and wires in the spring . Anything else I should look for , thanks for your help as usual Jim.
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Old Dec 14, 2001 | 01:01 PM
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Default Re: rough idle (Jim D)

fuel filter might be bad
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Old Dec 14, 2001 | 03:00 PM
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Default Re: rough idle (Jim D)

Check the cold start injector and sensor that activates it.
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Old Dec 14, 2001 | 03:56 PM
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Default Re: rough idle (Jim D)

IAC passageways covered in soot. -Matt-
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Old Dec 14, 2001 | 04:39 PM
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Default Re: rough idle (HighHopes85)

If it was just hard to start, I'd say an injector that is leaking gas into the cylinder while it sits... but it's not that if it has bad idle for 30 seconds. That gas would get cleared all out after the first combustion stroke.
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