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Thread: Adding Fuel Pressure to LS1

  1. #1
    Senior Member
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    Default Adding Fuel Pressure to LS1

    I wired in an old fuel pressure sensor I had laying around to my V2. I can see the voltage the v2 is getting with the ext.ad1 pid, but the calc.fp is not being recognized when I'm connected, and I don't know why. I have attached my calc.pid.txt file. Is there anything else I need to do to get the fuel pressure reading working?

    I'm guessing it has to be something with my configuration in the scan tool since it can see the 0-5volts from the sender, just isn't displaying fuel pressure.
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  2. #2
    Joe (Moderator) joecar's Avatar
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    Try this: delete the definition of units "PSI", and change the two references to "PSI" to "psi".

  3. #3
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    Like this? Cause this didn't work either. I've tried just about anyway with defining PSI in caps, caps with quotes etc... tried it with out both ways and nothing seems to work and i can't figure out why... I am reading voltage from the external input 1 but it isn't calculating into PSI, and it isn't showing fuel pressure as a valid PID.
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  4. #4
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    figured it out... I had () instead of {} in the formula part. changed that and works like a charm.

  5. #5
    Joe (Moderator) joecar's Avatar
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    Ha, good catch

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