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

really rough idle and poor response below 180 degrees

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Old Oct 7, 2002 | 07:48 AM
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fathermojo
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From: atlantic va
Default really rough idle and poor response below 180 degrees

okay folks.. what's up with this? the car's cold temp idling and throttle response sucks below 180 degrees. no vacuum leaks that i can see and if it were a spark miss, it'd most likely be missing all the time. nothing's been done to alter timing and the ecm isn't throwing out any codes.

taking ideas

thanks in advance,
mike
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