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Thread: Low Err

  1. #1

    Default Low Err

    I'm getting a Low Err on two sensors. I've checked 5V & ground on each sensor and they're pinned correctly. I also swapped the inputs in the computer (in case guy that wired car accidentally pinned backwards), still same. Any input on where to go next would be appreciated. Thanks.

  2. #2
    Join Date
    Nov 2014
    Location
    Ont. Canada
    Posts
    1,743

    Default

    Which sensors, and have you replaced them with ones that you know to be good?

  3. #3

    Default

    They are Holley pressure sensors. Both brand new on a brand new setup. One 100 psi for dome pressure and one 200 psi for charge pressure.

  4. #4
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    27,477

    Default

    Read section #5, "Multiple Sensors Display Erroneous Values": http://forums.holley.com/showthread....2193#post72193 (EFI Software/ECU Firmware Problems)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 200A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, -6AN fuel system plumbing, Walbro 255 LPH pump, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, B&M Hammer shifter, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

  5. #5

    Default

    Thanks guys for the input. I figured it out. The guy that wired the car actually pinned those two sensor signal wires wrong.

  6. #6
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    27,477

    Default

    Yep, that's in the LINK from post #4 above. Thanks for the update.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 200A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, -6AN fuel system plumbing, Walbro 255 LPH pump, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, B&M Hammer shifter, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

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