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Thread: Fuel pressure

  1. #1
    Tuner in Training
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    Apr 2019
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    Fuel pressure

    Is the fuel pressure in the scanner accurate? If so, where exactly does it read it from?
    Last edited by Mike Ferg; 05-19-2019 at 12:38 PM.

  2. #2
    Tuning Addict 5FDP's Avatar
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    Not in a gen 3. They don't have fuel pressure sensors in any of the LS1/6 or the truck engines. None that I've seen before.

    The later cars with fuel pump control modules can let you see fuel pressure.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  3. #3
    Tuner in Training
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    Quote Originally Posted by 5FDP View Post
    Not in a gen 3. They don't have fuel pressure sensors in any of the LS1/6 or the truck engines. None that I've seen before.

    The later cars with fuel pump control modules

    Weird because my scanner is showing between 28 and 35 psi which I know is way to low. I just couldn't figure out where it was coming from. My AFR is showing pretty lean though. I'm going to put a tester on the rail though and go from there.
    can let you see fuel pressure.