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Idahome
Joined: Wed May 2nd, 2018
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The rear axle vss sends more like 29000 PPM
The PCM gets inputs from 5 speed sensors in a 2002 model: left front wheel, right front wheel, VSS in rear axle, ISS and OSS (in transmission)
The wheel speed sensors, ISS and OSS are used for ABS brakes and shifting
The VSS input is basically used for the speedometer and cruise control....
The old v6 PCM used to take the rear axle vss signal (29000 ppm) and buffer it to the 8000 ppm and send to the speedometer and other modules.
In the v8 trucks the ABS module did this buffering not the PCM
The dakota digital converter will now be responsible for this.
I am working on wiring this up in our 02 trac hopefully today. I have done all the research now its time to find the wires and do testing.
So back to the no longer running issue.
FYI Your tachometer should be working, has nothing to do with the VSS issues
Is the theft light flashing when cranking or does it go out?
Im going to PM you with my phone number so you can text me in the shop....we will get through this!
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I build custom RBV, specializing in drivetrain conversions, wiring, suspension and complete custom trucks