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Thread: Analog CAN Gauges Twitching

  1. #1

    Default Analog CAN Gauges Twitching

    My oil pressure (553-127) and coolant temp (553-128) analog CAN gauges "twitch" randomly. These are daisy-chained with a CAN tach, using Holley 554-130 Gauge Module. The tach does not "twitch". All three read correctly otherwise. Using an HP EFI system.

    I'm assuming I have EMI or RFI interference. I've taken switched power for the Gauges and for the Gauge Module from two different sources, no change. Ran the wires away from the main harnesses, no change. Remove and reinstalled the pin in J1A connector, no change. Any suggestions as to what's wrong? Maybe bad Holley 554-130 Gauge Module?

  2. #2

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    I'm having the same issue. Considering you posted this a week ago I suspect the Holley tech's don't have an answer. They are usually pretty good about answering questions in a timely manner. Like yours, my gauges read accurately and it's only the gauges that twitch, not the tach. I like the look of the instruments, especially at night when they're lit, so I'll probably just live with the issue.

  3. #3

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    I have the same issue, did you ever find a solution to this problem? Please advise.

  4. #4
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    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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