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Thread: Installing a VSS Sensor with Holley EFI

  1. #161
    Join Date
    Dec 2009


    The 3.5" LCD Touchscreen can only display your custom created I/O (I/O ICF) on the "I/O Monitors" (Monitors, IO Monitors), not in the "Dash Setup".
    A V4 updated 3.5" LCD Touchscreen has the "I/O Monitors" to display the user's custom created I/O (Inputs/Outputs ICF - Holley EFI laptop software).
    If you're on V4 EFI software/ECU firmware, the new "I/O Monitors" only display the first ten custom Inputs & Outputs. Not a problem for HP EFI users.
    So if those Inputs are listed beyond #10, you'll have to reconfigure some Inputs (EFI software - I/O ICF) to view them on the 3.5" LCD Touchscreen.
    I/O Monitors are a great feature. I reconfigured the numerical order of my Inputs/Outputs ICF, just so I could monitor the first ten I deemed most important.
    The 3.5" TSLCD V4 Release Notes & Installation PDF document is attached to this post - LINK.
    EDIT: The V4 update reference doesn't pertain to the Terminator X users because it has its own 3.5" TSLCD firmware version.
    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.

  2. #162


    Danny, I installed an Auto Meter 5921 as you instruct in this thread. I did the math for the gear ratio input, speedo ratio 38/15=2.53, Rear Gear Ratio 3.42/2.53=1.34, tire diameter 26.3". The input is working with speed displayed on the 3.5 touchscreen in the inputs 1-5 page as it should, however, the speed is high by approximately 8 MPH compared to the cable driven speedometer and my GPS. I'd assume making a change in the Rear Gear Ratio box would fix this, but not sure if I should increase the number or decrease the number. What would you suggest. Thanks.

    UPDATE: So I increased the Gear Ratio by 10% and it did make the reading more accurate at about MPH, within 2 MPH.

  3. Default

    Thanks for info.

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