Odometer

[FR8TRN]

I thought I had read somewhere that it's possible to setup an odometer on the Digital Dash via using the Holley GPS Module. Is this possible?

[Danny Cabral]

Yes. Search (Ctrl + F) the Digital Dash Instruction Manual (LINK) for "Odometer". Or read "Odometer" references in the 1st framed box below, from this post: https://forums.holley.com/showthread...light=odometer (Speedometer Output Info - Dominator ECU/Transmission ICF)

Originally Posted by Danny Cabral If you're using the Holley 554-140 GPS USB Module with the Digital Dash, and/or need an Odometer: http://documents.holley.com/199r10746rev1.pdf (Holley 553-106 Digital Dash Instructions - "Vehicle Tab" & "GPS Speed", Page 11) Go to Menu, Configuration, Dash Configuration, Vehicle Tab, and change Speed Input to "GPS Speed" (LINK). If you're using the electronic transmission's VSS (Transmission ICF) with the Digital Dash, and/or need an Odometer: http://documents.holley.com/199r10746rev1.pdf (Holley 553-106 Digital Dash Instructions - "Vehicle Tab" & "Trans Speed", Page 11) Go to Menu, Configuration, Dash Configuration, Vehicle Tab, and change Speed Input to "Trans Speed" (LINK). If you're using a custom created VSS Input from the ECU Inputs/Outputs ICF with the Digital Dash, and/or need an Odometer: http://documents.holley.com/199r10746rev1.pdf (Holley 553-106 Digital Dash Instructions - "Vehicle Tab" & "ECU Input", Page 11) Go to Menu, Configuration, Dash Configuration, Vehicle Tab, and change Speed Input to "ECU Input" (LINK/LINK). The ECU Input must be named "Speed" and the units set to miles/hour for the odometer to report distance accurately. If you're using a custom VSS Input directly connected into the Digital Dash IO3 or IO4 pins, and/or need an Odometer: http://documents.holley.com/199r10746rev1.pdf (Holley 553-106 Digital Dash Instructions - "Vehicle Tab" & "Dash Speed", Page 11) Go to Menu, Configuration, Dash Configuration, Vehicle Tab, and change Speed Input to "Dash Speed" (LINK). This is the only setting that requires you to enter values in the Local Dash Speed Calculation fields on the Digital Dash.

Originally Posted by Danny Cabral FYI: The "Speedometer Output Enable" (Speed Calculation in the Transmission ICF) is used to operate an electronic speedometer PPM (Pulses Per Mile signal - LINK), not a VSS. Electronic transmissions already have a VSS. If you're trying to create a stand-alone VSS (MPH) signal, do so with a custom speed Input in the Inputs/Outputs ICF (LINK). HP ECU is only compatible with Hall-Effect type VSS. http://forums.holley.com/showthread....2656#post82656 (Speedometer/VSS Information - Read posts #2, Groups & #6.) Are you trying to send a PPM (pulses per mile) signal to a speedometer, or adding a vehicle speed sensor channel input? If operating an electronic speedometer, do so by using the "Speedometer Output Enable" in the Transmission ICF: http://forums.holley.com/showthread....0291#post30291 (Speedometer Output Info - Dominator ECU/Transmission ICF) If wiring a stand-alone VSS sensor (MPH display), do so with a custom speed Input in the Inputs/Outputs ICF: http://forums.holley.com/showthread....ith-Holley-EFI (Installing A VSS Sensor)