LS1TECH - Camaro and Firebird Forum Discussion

LT1-LT4 Modifications 1993-97 Gen II Small Block V8

rough idle

   
Old 11-23-2010, 06:32 PM
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Default rough idle
My car idles at 500-550 I know this is not right so does anyone know why this could be
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Old 11-23-2010, 06:55 PM
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Monitor your IAC counts with scanning software and check for vacuum leaks. Ditch the Hypertech while you're at it.
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Old 11-24-2010, 02:53 AM
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I cant use my scanning tool because it won't read or communicate with the ecm
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