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  1. #1
    Clean-Dezert.org hxckidd's Avatar
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    I have a 97 ranger 4.0 and am wiring it right now. What the hell is the pcm power diode? can i take it out?

  2. #2
    Senior Member rangair94's Avatar
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    I dont know if this is the same thing either way it has a diode for a reson
    Quote Originally Posted by [b
    Quote[/b] ]ENGINE PERFORMANCE II

    LESSON 4

    ELECTRONIC FUEL INJECTION Lesson 5 Fuel Control

    Electronic fuel injection systems use solenoid-operated injectors that are pulse width modulated to meter the fuel entering the engine. The injector solenoid may control a pintle, ball, or disc valve. Ball and disc valve are more resistant to clogging. The PCM controls the ground side of the injector circuit. A zener diode in the PCM allows the injector to produce a voltage spike of 30v - 80v, which gives the injector a quicker response time without damaging the PCM. Draw electrical circuit!

  3. #3
    Racer sirhk100's Avatar
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    "Disclaimer, I have no clue what I'm talking about!!!"


    Common adam, just cut the wires and toss it in the trash!!! You only live once, no regrets!!! It'll probably double your power without that thing on there!!!
    Khris

  4. #4
    Clean-Dezert.org hxckidd's Avatar
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    your no help. Anyone else know?

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