Hey HT,

I have a 1993 Integra RS 5 speed. It has a JDM ITR motor and a cable 92-93 YS1 trans with ITR internals and Mfactory LSD. I removed the cable VSS that the car has, and replaced with an electric VSS which was given to me, I believe its from a D series manual trans. The VSS dropped in and fits fine. I am attempting to run an aftermarket 95mm speedo gauge that I retrofitted into my stock cluster with some slight modifications. I have the 12v, switched 12v and ground hooked up and the gauge is powering on as it should. The only other wire needed for it to work is VSS signal wire. Let me add, that I am running a rywire OBD1 harness that has the plug for electric VSS that is hooked up. The VSS signal wire from this harness is blue/white stripe and is tapped into b10 VSS from the stock harness which is yellow/red stripe. I hooked the speedometer up to this signal wire and the gauge isn't moving with speed.

So far, I have tested my VSS 3 prong plug, when unplugged it has 12v switched (confirmed), ground (confirmed) and then the signal wire which should show 5v I believe, is showing approx 4v. I confirmed that this blue/white striped wire coming off the harness is showing the same 4v reading. From what I understand the signal wires voltage changes as the wheels spin. I saw a way to test an electric VSS in an Integra by checking VSS signal voltage with by jacking up one wheel and reading voltage with a multimeter and spinning that one wheel by hand slowly with the other on the ground, and the voltage should fluctuate between 5-10v or something. My issue is with the LSD both wheels will turn together, can I still test like this?

So to sum up:

DA Integra, Electric VSS, rywire harness with VSS plug and signal wire, glowshift digital Speedometer that requires VSS signal wire.

The only thing that makes sense to me is the VSS itself is bad, or I am missing something? Any input is appreciated.

 

If you jack both wheels up you’ll be able to get a signal with a meter like you said. As long as the gear the sensor takes signal off of is moving with the ignition on you’ll be good. But I noticed you said that speedo is a glowshift….. I’ve never bought anything from them personally but my teggy and another car I bought had their gauges already on the car and EVERY single one of them gave me false data. Boost gauge was 3 psi plus or minus my actual boost pressure, oil pressure gauge would be off anywhere from 10 to 30psi off and battery voltage sensor would just say whatever it wanted depending on the weather. Not exactly sure how to test the speedo but if you’re getting good vss signal I’d lean towards the glowshift products

 

THanks, turns out that the VSS was bad. The middle of the 3 metal pins were broken off in the VSS.