VSS issue in 6.0 swap in 94 4x4

[HPICamaroSS]

Ya that should work. Should be the same type of sensor just different looking.
Any dtc's?

Like wrong gear ratio or input signal?

The only code I get is Vehicle Speed sensor circuit. Cant remember the number.

I plugged nelsons vss in the back of the tcase and it will shift by itself, but then my speedo doesnt work

[HPICamaroSS]

The only code I get is Vehicle Speed sensor circuit. Cant remember the number.

I plugged nelsons vss in the back of the tcase and it will shift by itself, but then my speedo doesnt work

And I have the speedo wire hooked up

[slow94]

Where do you have the speedo wire tied in? On my 1994 I originally hooked it in before the drac/buffer, and it wouldnt read correct. I bypassed it and went straight into the cluster bypassing the drac/buffer and it worked great ever since. I sold the truck to my friend or I would go get the wire color.

[Mickeymotormount]

Speedo wire should come from the PCM. The VSS wires go to the PCM and the PCM processes that info and sends the signal directly to the speedo on another wire. Should be a dark green/white wire from pin 50 of C-2 connector(Red or Green,depending on year).

[farmtruc]

So the trans is shifting good now that the speedometer wire is disconnected?
Check pin location and do the suggested above. We've done it that way like others have and it works.

Let us know

[slow94]

I found my diagrams, here's how mines wired.
Green wire pin 50 on the green or red pcm connector, then behind your glove box, find the light blue wire coming out of the drac, pin c15(this feeds directly into the cluster). I clipped this wire and spliced it straight into the green wire from pcm pin 50.

[Mickeymotormount]

I found my diagrams, here's how mines wired.
Green wire pin 50 on the green or red pcm connector, then behind your glove box, find the light blue wire coming out of the drac, pin c15(this feeds directly into the cluster). I clipped this wire and spliced it straight into the green wire from pcm pin 50.

+1 to the above.

[HPICamaroSS]

Speedo wire should come from the PCM. The VSS wires go to the PCM and the PCM processes that info and sends the signal directly to the speedo on another wire. Should be a dark green/white wire from pin 50 of C-2 connector(Red or Green,depending on year).

Thanks! thats a very good tip right there, exactly what I was looking for! So on the transfercase what are the 2 sensors? I am pretty sure the very rear one is the vss whats the one before that. Do I do anything with that first sensor on the tcase?

[slow94]

The first sensor/switch on your transfer case is used to engage the 4wd actuator in your front axle, it also illuminates your floor shifter, and signals the pcm when you have shifted to 4lo, it also has some function for 4wal/rwal.

[HPICamaroSS]

The first sensor/switch on your transfer case is used to engage the 4wd actuator in your front axle, it also illuminates your floor shifter, and signals the pcm when you have shifted to 4lo, it also has some function for 4wal/rwal.

So I just leave that first sensor alone? Dont do anything with it?