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Thread: (SOLVED) truck still wont run

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  1. #1



    Array
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    Join Date
    03-26-2011
    Posts
    1,507
    Location

    Vacaville, CA
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    4G63-T
    I don't know about making it bad but definitely affect it not working correctly.
    Josh
    09 BMW 335i E92 Twin turbo
    89 Macrocab 4g63 Turbo swapped & Bagged: Build Thread

  2. #2

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    Join Date
    04-01-2011
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    155
    Location

    Garden Valley, CA
    Vehicle

    1990 Mitsubishi Mighty Max
    Engine

    6G72
    Quote Originally Posted by DroppedMitsu View Post
    I don't know about making it bad but definitely affect it not working correctly.
    good to know

    i figured this out today, the crank position sensor and ignition control module wiring ties in together and then branches off and connect at pin 1 and pin 6 at the ecu. when i test for resistance between the icm and pin 1 the resistance is 1.7 ohms. but when tested from the icm to pin 6 its at .3 ohms. the when i test from the cps to pin 1 its at .3 then from that to pin 6 its at 1.3. so is there a resistor somewhere in the wiring in between there (the haynes manual didnt show one neither did the fsm from mitsubishilinks.com) or is that a good place to look for a short.

  3. #3

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    Join Date
    04-10-2011
    Posts
    256
    Location

    WA
    Vehicle

    1990 Mitsubishi Mighty Max
    Engine

    6G72
    This might be too obvious but there is a pigtail of 2 or 3 wires connected to an eyelet that has to be on one of the bolts that secures the ecm to the cab. I think it is black and it acts as the ground for the ecm. I know it won't start if this isn't attached to the ecm bolt.

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