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Thread: Electrical Problems

  1. #1
    Join Date
    Jun 2006
    Location
    Londonderry NH
    Posts
    157

    Default Electrical Problems

    Looking for help or device of reliable source to chase down what appears to be electrical problems.

    I am in southern NH.

    On Saturday at Limerock the car seemed to run ok for seven laps and then died on the front straight. Pulled off at the flag station after turn two. Once the car sat for a few mimutes it started and I drove back to the paddock. Checked the wiring harness at computer and thought I founf the problem with a loose connector.

    Went out for the afternoon race and the car ran fine for the pace lap, but when the green came out it shut down before I got to turn one. I coasted and got off after turn two. This time the car would not start and once towed back to the paddock had to push the car onto the trailer.

    Unloaded tonight and the car started fine and sounds normal.

    Any recommendations?
    Jim Alley
    1990 ITA Miata


    Its all about doing your personal Best

  2. #2
    Join Date
    Oct 2004
    Location
    Asheville, NC US
    Posts
    1,626

    Default

    When you say would not start do you mean no power to starter or anything else, or just will not fire? If everything seems to work and it will not fire check the cam sensor.
    Steve Eckerich
    ITS 18 Speedsource RX7
    ITR RX8 (under construction)

  3. #3
    Join Date
    Jun 2001
    Location
    Elkridge, MD
    Posts
    303

    Default

    If the fuel pump is electric, I would suspect that is the problem...
    Washington DC Region
    Scuderia Tortuga
    MARRS ITC Scirocco #12

  4. #4
    Join Date
    Jun 2006
    Location
    Londonderry NH
    Posts
    157

    Default

    How do I check the cam sensor? I did hyave power to everything else, no fire!
    Jim Alley
    1990 ITA Miata


    Its all about doing your personal Best

  5. #5
    Join Date
    Nov 2006
    Location
    Newton, MA
    Posts
    170

    Default

    Hey Jim...
    I have been where you are! I would take a very, very close look at the wires into the coil pack and coming out of the Cam/vrank angle sensor. On your 1.8 it is at the back of the head on the driver side. What happened with a friend last year is that the wires frayed a bit and sometimes there would be enough connection and sometimes not. At an initial look... they seemed fine.

    The wires can take a pretty sharp turn there and on mine the plastic aroudn the wires was fraying. I made sure the connections were good on mine and "painted" the wires with some "liquid tape" to seal and reinforce the wires and connections.

    This is a pretty good bet, but please let me know what you find!
    Brad
    Brad
    1995 Mazda Miata (aka Black Betty)
    #13

  6. #6
    Join Date
    Jun 2006
    Location
    Londonderry NH
    Posts
    157

    Default

    Thanks Brad, I will check them very carefully. I picked up a new Cam Sensor last night and plan to change it out. When I do, I will check all wires and connections.
    Jim Alley
    1990 ITA Miata


    Its all about doing your personal Best

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