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  1. #1
    Junior Member
    Join Date
    Sep 2006
    Location
    Elgin Il
    Age
    38
    Posts
    2

    Black/Blue
    94 Camaro Z28

    Misfires when engine warms up... help!!!

    i have a 94 Z28 with the lt1 in it. it runs really good when the motor is cold but after about 5 or 10 minutes, it misfires badly and shoots raw fuel out of the exhaust. i put a new optispark in it, new plugs and wires, new o2 sensors, and new fuel injectors. the mods i have are a mac cat back, hooker headers, grenatelli maf, k&n intake, trick flow elbow, and a shift kit. it ran fine before then oneday, it started doin this. anyone ever had this problem or knows anything about this??? please help me out

  2. #2
    2000pontiac6
    Guest
    wrong forum post in lt1 section

  3. #3
    Senior Member bandit95's Avatar
    Join Date
    Sep 2005
    Location
    Beaumont, Tx
    Age
    40
    Posts
    1,792

    Blue GMC Canyon
    trans ams gone now

    mine does it because the o2's are messed up on my 95

  4. #4
    Junior Member
    Join Date
    Aug 2006
    Location
    brew city
    Age
    47
    Posts
    18

    black
    96 impala

    if it is more evident when the car warms up,id look into the coil.

  5. #5
    Junior Member
    Join Date
    Oct 2006
    Location
    alvin
    Age
    38
    Posts
    1

    blue
    93 camaro

    coil or ignition module seen them both cause similar problems

  6. #6
    Junior Member
    Join Date
    Sep 2006
    Location
    Elgin Il
    Age
    38
    Posts
    2

    Black/Blue
    94 Camaro Z28

    yeah i have tried damn near everything except the coil so i guess thats the next thing to try... thanks alot guys

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