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Thread: 89 4x4 S10 4.3 TBI

  1. 12-12-2023 #1
    goldsmitjh1958
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    Cool 89 4x4 S10 4.3 TBI

    Howdy from Texas!! I was given this vehicle free of charge only running in default mode! The distributor est pulse is not getting to the ECM sending it in to default mode after start up. looking for a pinout so the wiring can be checked. Any help or advice will be appreciated.
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  2. 12-12-2023 #2
    dave w
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    This gearhead-efi link has schematics for the 1227747 TBI computer: http://www.gearhead-efi.com/Fuel-Inj...Information-42
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  3. 12-12-2023 #3
    goldsmitjh1958
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    Thank You I will look that up. WAI remanufactured ECM support is sending pin outs for the ECM and Distributor so the wiring can be sorted!
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