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Thread: Noob to Coyote question - Wiring harness on the engine from Ford

  1. #1
    Senior Member Fixit's Avatar
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    Noob to Coyote question - Wiring harness on the engine from Ford

    The Ford harness that comes on the crate engine has a connector for the (factory) Oil Pressure sender.
    This sender is replaced with whichever sender your FFR gauges require.

    Question is:
    Does the Ford ECU/ECM/Magic Black Box engine computer require an oil pressure input?

    Also, I'm assuming the ECU gets an engine temp signal from another sensor on the block?
    John D. - Minneapolis 'Burbs

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    Does the Ford ECU/ECM/Magic Black Box engine computer require an oil pressure input?-No
    Also, I'm assuming the ECU gets an engine temp signal from another sensor on the block? YEs


    Quote Originally Posted by Fixit View Post
    The Ford harness that comes on the crate engine has a connector for the (factory) Oil Pressure sender.
    This sender is replaced with whichever sender your FFR gauges require.

    Question is:
    Does the Ford ECU/ECM/Magic Black Box engine computer require an oil pressure input?

    Also, I'm assuming the ECU gets an engine temp signal from another sensor on the block?
    FFinisher/AKA RE63

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  4. #3
    Not a waxer Jeff Kleiner's Avatar
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    And there you go, straight from the Coyote master!

    Jeff

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    Senior Member Fixit's Avatar
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    Good news... Thanks

    That little section of wiring will go on a "diet" and be trimmed back & capped off.
    John D. - Minneapolis 'Burbs

    1965 El Camino - LT-1, 4L60e, 4wh discs, SC&C susp.
    2013 F-150 Platinum - Twin Turbo 3.5
    2018 Mk4 Roadster w/ Coyote - #9365 - Build Thread Delivery 7/3/18, 1st Start 1/4/19, 1st Road Mile 5/5/19, Legal 6/18/19, In Paint 2/25/21, Done (?) 4/2021

  6. #5
    Senior Member edwardb's Avatar
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    Answers received are correct of course. One piece of trivia that may be useful at some point. The Coyote doesn't have a standard water temp sensor. What it does have is a Cylinder Head Temperature (CHT) sensor and it "infers" engine/coolant temp for things such as the cooling fan signal. If you ever read data from the ODB2 port, CHT is the data stream available for engine temp. Of course the gauge sending unit installed in the block port per the instructions will give actual coolant temp to the gauge, but for reference only.
    Last edited by edwardb; 12-11-2018 at 08:55 PM.
    Build 1: Mk3 Roadster #5125. Sold 11/08/2014. Build 2: Mk4 Roadster #7750. Sold 04/10/2017. Build Thread
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