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Thread: Fuel Pressure Sender

  1. #1
    Electronic Ignition!
    Join Date
    Jul 2015
    Posts
    18

    Fuel Pressure Sender

    Does anyone have experience with adding an inline fuel pressure sender to an EFI system. My goal would be to add something similar to this:

    http://www.ebay.com/itm/Pressure-tra...-/271576977896

    I was thinking to adding this to a tee in fuel line near the frame before it comes up aft of the motor. My goal would be to feed this signal to the 7427 PCM to support a readout in the adx info. Has anyone done this or have any ideas on a path forward?

  2. #2
    Fuel Injected!
    Join Date
    Oct 2013
    Posts
    1,022
    Should be easy. Wire it up like a TPS but feed the signal wire into an extra analog input the same way you'd wire a wideband O2 sensor.

  3. #3
    Electronic Ignition!
    Join Date
    Jul 2015
    Posts
    18
    Could I feed the signal to another pin on the 7427 PCM? I already have the WB02 signal feed to B16 and would like to keep it active. I don't have anything fed to E14 since my 7747 MAP and TPS reference are spliced together. I just don't have clear information from this thread (http://www.gearhead-efi.com/Fuel-Inj...ressions/page3) on whether the 5V reference in E14 is an input signal or an output signal. I seem to think it is 5V output from PCM to MAP based on the wiring on the 7747 and 7427 so I don't think this E14 pin will work, correct me if I am wrong. Any other open ideas for an untapped 5V analog input in the 7427 PCM? I am currently running a 700R4 so I don't know if any of the transmission inputs are 5V reference that I might be able to use?

    Steve

  4. #4
    Electronic Ignition!
    Join Date
    Jul 2015
    Posts
    18
    So could I use the open B5 location - Trans Temp - since I have the 700r4? I would probably use it similar to the oil temp sender found here: http://www.gearhead-efi.com/Fuel-Inj...easuring/page4. I just don't know much about hacking the BYJL $0D Bin yet, but I am open to learning how, more reading...

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