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Thread: Holley EFI V5 Build 110 Complete File Set - 3.5 Touchscreen Issue

  1. #1

    Default Holley EFI V5 Build 110 Complete File Set - 3.5 Touchscreen Issue

    Hello. I'm having an issue with the new V5 3.5" firmware update, hoping someone can help me with my problem. I downloaded the updated firmware into my 3.5" touchscreen & Dominator ECU. The problem I'm having is with the touchscreen. On the Air/Fuel ration screen, I'm able to read i.e. AFR, Closed Loop, Learn, Closed Loop Status, RPM & Oil Pressure. However, when I switch to read all the sensors the Battery is reading TPS%, CTS is at zero, TPS is reading MAP! There's a red dot flashing in the upper right corner of the screen. Any comments or suggestion on what I'm experiencing?

  2. #2
    Join Date
    Dec 2009


    The EFI (laptop) software, ECU firmware & touchscreen unit must all be version compatible (LINK). If so, contact Holley Tech Service (LINK).
    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, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 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/2800 RPM converter, M4602G aluminum driveshaft, FRPP 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 tires.

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