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rough idle

This is a discussion on rough idle within the General Help forums, part of the LSx Technical Help Section category; ive got a rough idle in my 98 T/A. ive recently got the entire fuel system cleaned so that's not ...

  1. #1
    Junior Member
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    1998 Pontiac Trans Am

    rough idle

    ive got a rough idle in my 98 T/A. ive recently got the entire fuel system cleaned so that's not the problem, it runs fine once i get off idle, but at idle it has a sort of lope. last weekend it threw an emissions code. i was wondering if it could be an EGR valve sticking or what it could be?? any ideas?? and how would i clean that? just use carb cleaner or something of that sort?? thanks

  2. #2
    Veteran Hi-Po's Avatar
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    1999 TA WS.6

    Check maybe the IAC [ idle air control.]

  3. #3
    How many miles? Last sparkplug change? Sparkplug wire fully on? Ignition will show @ idle and top end.

  4. #4
    We'll be back... GatorSS's Avatar
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    Light Pewter Metallic
    2000 Camaro SS M6

    What was the code it threw?

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