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  1. #11

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    In used the harness of the 96 so I think its ok...

    So I got my MadZ28 Ecu today and still no spark with either ICM or Coil...

    I have to be missing something here. What is something stupid that if not connected would not cause spark else where on the motor. I have to be missing something small and thats the cause of this.

    When pulling a motor what would be missed or connected wrong or could go in the wrong spot etc.
    Denny Crane /Rotary = Fail\
    LTx 355 w/ GM 847


  2. #12
    Pr0jekt Turb0?


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    Sep 2008
    Name
    Ryan
    Vehicle
    1993 Camaro Z28
    Location
    Utica, NY + Jacksonville, FL
    Posts
    3,613

    Default

    fuse for the ignition?
    -Ryan
    93 Z28 M28

    Mod List



  3. #13

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    Checked it nothing...

    Ok I have a Crank Position Sensor on this motor from the 96 but because of the 94 it does not have the connection for it... I doubt it but could this cause it?
    Denny Crane /Rotary = Fail\
    LTx 355 w/ GM 847


  4. #14

    Default

    So now I have tried a new ICM nothing, I have had the coils tested, they are good.

    Still no spark.

    I finally found my camera cable so I am posting pics and I found another ground wire at the PCM thats got a connector but does not connect to anything I can find. However when I grounded it out it blew the interior PCM Fuse.



    So who has some idea's now?
    Denny Crane /Rotary = Fail\
    LTx 355 w/ GM 847


  5. #15

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    Added quite a bit of more info... any ideas yet?
    Denny Crane /Rotary = Fail\
    LTx 355 w/ GM 847


  6. #16
    LTx Mod, Founding Member


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    Sep 2008
    Location
    Saugus, MA
    Posts
    3,450

    Default

    All the ground wires you were talking about before are now connected?
    Nick

    - 2003 SVT Cobra T56/4.6L - Pullied, Tuned, Full Intake/Exhaust, Stg3 Clutch (29k) - 483rwhp @14-15psi
    - 2002 Ford F350 7.3L Powerstroke - Edge Evo II/33" BFG AT TAs/4" MBRP Turbo Back + Intake (164k)
    - 1995 Pontiac Firehawk #224 (Chameleon) - Full Bolton/Cammed/Full Suspension (71k) - 12.75 @ 107.94
    http://www.fquick.com/Fixxer777

  7. #17

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    As I posted they are not grounds. With the key off they are grounds but with the key in the black wire has 12v and cranking the Tan White has 6.5 Volts and they seem to be linked to the ABS...
    Denny Crane /Rotary = Fail\
    LTx 355 w/ GM 847


  8. #18

    Default

    The White wire coming off the PCM that's supposed to tell the ICM to spark is supposedly supposed to be at 12v... mine is at 9-9.5v.
    Denny Crane /Rotary = Fail\
    LTx 355 w/ GM 847


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