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  • 7" Digital Dash Odometer

    I've had a driveshaft sensor since V4 EFI software days. It consists of an eight magnet ring on the pinion yolk and an MSD Hall-Effect pickup. Has always been reliable. I use Input # 4 driveshaft speed for speedometer displayed on the Digital Dash. I was also able to configure an odometer which worked great until V6 EFI software came out. Haven't had an odometer since then. I have it configured on the Digital Dash, but it doesn't advance. I'm now thinking maybe I need to split the driveshaft signal and send Driveshaft speed to a Digital Dash Input.
    Last edited by SSSTANG; 01-23-2023, 05:12 PM.
    '81 Mustang Cobra/LSx powerplant
    Extreme Racing Engines built LS447
    1.22 60', 8.96 @ 155.47
    sigpic

  • #2
    Check your odometer programming to see if it changed: https://forums.holley.com/forum/holl...974#post364974 (Related Forum Thread)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385"/6.3L SBF, Dart SHP 8.2 block, Eagle forged steel crankshaft & H-beam rods, Wiseco forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration/.623" lift/114° LSA H/R camshaft, TFS R-Series FTI Comp Ported intake, BBK 80mm throttle body, Holley Dominator MPFI & DIS, Holley 36-1 crank trigger, MSD 1x cam sync, PA PMGR starter, PA 200A 3G alternator, Optima 34/78 Red battery, 100HP progressive dry direct-port NOS, R134a A/C, Spal Dual 12" HP 3168 CFM fans, Frostbite 3-core aluminum radiator, Pypes SS dual 2.5" exhaust, SS off-road X-pipe, SS shorty headers, Earl's -6AN fuel system plumbing, Walbro 255 LPH in-tank pump & Pro-M -6AN hanger, S&W subframe connectors, BMR upper & lower torque box reinforcements, LenTech Strip Terminator wide-ratio Ford AOD, 10" 3000 RPM C6 billet converter, B&M Hammer shifter, Stifflers transmission crossmember & driveshaft safety loop, 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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    • #3
      I have "ECU Input" and Input # 4 (Driveshaft Speed) selected. Now the odometer is displaying wheel speed in MPH. If I have ECU Input selected, what Input is it looking for? By the way, I have an HP ECU and all I/Os are in use. Do I need to split the driveshaft sensor output and connect to the Digital Dash harness and do it that way?

      Click image for larger version  Name:	20230123_175716.jpg Views:	0 Size:	1.66 MB ID:	369756Click image for larger version  Name:	20230123_175941.jpg Views:	0 Size:	1.95 MB ID:	369757Click image for larger version  Name:	20230123_180022.jpg Views:	0 Size:	1.84 MB ID:	369755
      '81 Mustang Cobra/LSx powerplant
      Extreme Racing Engines built LS447
      1.22 60', 8.96 @ 155.47
      sigpic

      Comment


      • #4
        Originally posted by SSSTANG View Post
        I have "ECU Input" and Input # 4 (Driveshaft Speed) selected. Now the odometer is displaying wheel speed in MPH. If I have ECU Input selected, what Input is it looking for?
        https://forums.holley.com/forum/holl...233#post100233 (Digital Dash Odometer Information)

        By the way, I have an HP ECU and all I/Os are in use. Do I need to split the driveshaft sensor output and connect to the Digital Dash harness and do it that way?
        No, you shouldn't have to do that.
        May God's grace bless you in the Lord Jesus Christ.
        '92 Ford Mustang GT: 385"/6.3L SBF, Dart SHP 8.2 block, Eagle forged steel crankshaft & H-beam rods, Wiseco forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration/.623" lift/114° LSA H/R camshaft, TFS R-Series FTI Comp Ported intake, BBK 80mm throttle body, Holley Dominator MPFI & DIS, Holley 36-1 crank trigger, MSD 1x cam sync, PA PMGR starter, PA 200A 3G alternator, Optima 34/78 Red battery, 100HP progressive dry direct-port NOS, R134a A/C, Spal Dual 12" HP 3168 CFM fans, Frostbite 3-core aluminum radiator, Pypes SS dual 2.5" exhaust, SS off-road X-pipe, SS shorty headers, Earl's -6AN fuel system plumbing, Walbro 255 LPH in-tank pump & Pro-M -6AN hanger, S&W subframe connectors, BMR upper & lower torque box reinforcements, LenTech Strip Terminator wide-ratio Ford AOD, 10" 3000 RPM C6 billet converter, B&M Hammer shifter, Stifflers transmission crossmember & driveshaft safety loop, 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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        • #5
          Possible I may have missed something, but I've read all of that and don't see where it applies to a driveshaft sensor Input. This is how I have Input # 4 configured:
          Click image for larger version  Name:	20230123_184341.jpg Views:	0 Size:	2.99 MB ID:	369762 Click image for larger version  Name:	20230123_184535.jpg Views:	0 Size:	1.64 MB ID:	369761
          Attached Files
          '81 Mustang Cobra/LSx powerplant
          Extreme Racing Engines built LS447
          1.22 60', 8.96 @ 155.47
          sigpic

          Comment


          • #6
            Got it working. I resisted as long as I could then finally changed Input # 4 from DS Speed to SPEED, cycled power. So I guess when you configure a gauge and name it Odometer, it's automatically looking for SPEED.

            Click image for larger version  Name:	Screenshot_20230123-211819_Facebook.jpg Views:	25 Size:	159.8 KB ID:	369769
            Last edited by SSSTANG; 01-23-2023, 08:23 PM.
            '81 Mustang Cobra/LSx powerplant
            Extreme Racing Engines built LS447
            1.22 60', 8.96 @ 155.47
            sigpic

            Comment


            • #7
              Yep, that's in my LINK in post # 4 above.
              May God's grace bless you in the Lord Jesus Christ.
              '92 Ford Mustang GT: 385"/6.3L SBF, Dart SHP 8.2 block, Eagle forged steel crankshaft & H-beam rods, Wiseco forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration/.623" lift/114° LSA H/R camshaft, TFS R-Series FTI Comp Ported intake, BBK 80mm throttle body, Holley Dominator MPFI & DIS, Holley 36-1 crank trigger, MSD 1x cam sync, PA PMGR starter, PA 200A 3G alternator, Optima 34/78 Red battery, 100HP progressive dry direct-port NOS, R134a A/C, Spal Dual 12" HP 3168 CFM fans, Frostbite 3-core aluminum radiator, Pypes SS dual 2.5" exhaust, SS off-road X-pipe, SS shorty headers, Earl's -6AN fuel system plumbing, Walbro 255 LPH in-tank pump & Pro-M -6AN hanger, S&W subframe connectors, BMR upper & lower torque box reinforcements, LenTech Strip Terminator wide-ratio Ford AOD, 10" 3000 RPM C6 billet converter, B&M Hammer shifter, Stifflers transmission crossmember & driveshaft safety loop, 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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