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Thread: 7" Digital Dash with Holley Fuel Gauge, sending unit not working.

  1. #1

    Default 7" Digital Dash with Holley Fuel Gauge, sending unit not working.

    Hi. I bought the 30 Ohm fuel sending unit to work hassle-free with the Digital Dash. It does not work. As soon as it is wired to the Dash IO10, it changes the Ohms reading. I've tested the sending unit separately, it works and I get the correct Ohms reading (30 when full/up). When connected to the Digital Dash the reading goes up to 130 Ohms. I've done a new short 3" wire from the Digital Dash to sending the unit to make sure it is not a wiring issue. Still the same. All my configuration settings for IO10 is correct. Help please.

  2. #2
    Join Date
    Dec 2009


    See if something in this forum thread helps, especially the last two links: (Digital Dash Fuel Level Gauge/Input)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 11.8:1 comp, TFS R-Series FTI ported intake, BBK 80mm TB, 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, 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 MT tires.

  3. #3


    No, I played around with averaging. I can get it better, but not stable.
    Read all threads related to this, but no one really seems to resolves it.

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