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Thread: Maximum amperage of diesel injectors.

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    Patrol God mudnut's Avatar
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    Maximum amperage of diesel injectors.

    G'day all. I am in the process of building an injector pulse tester.

    I could buy one, but where is the fun in that? The circuit I am building is for non-direct injection petrol engines.

    It uses a couple of 555 timers and a MOSFET which is rated at maybe 15 amps.

    I know that the newer diesels use sequential and multi-stage injection patterns and so draw a very heavy current.

    Since I am building this unit I may as well make it useful for any engine.

    Could someone please let me know what the CRD injectors current rating is so I can select an appropriate MOSFET, fuses, clamps and cables?
    Last edited by mudnut; 1st April 2015 at 06:05 PM.
    My advice is: not to follow my advice.

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