VSS OBDII wiring questions.

[328ijunkie]

^wrong wire color reference btw ;)

[luckysnafu]

^wrong wire color reference btw ;)

Well if you are going to call me out on it, at least let everyone know the correct colors :p

[328ijunkie]

Your pin# was correct :D
Brn/Rd.

[luckysnafu]

Your pin# was correct :D
Brn/Rd.

Hmm, my wiring diagram might be wrong...I think I heat shrunk all my wiring so I don't know if I can double check. I'm sure you have more experience with this than I do anyway, I've only done it twice :D

[mammoth_e30]

I have pin 9 of the X20 (white/gray with yellow dashes) connected to pin 14 of the C101 (black/white) and I don't get any codes or problems with rev limiting. I have an early 96 m52 engine with OBDII still wired up.

I can verify via the Android Torque app that my ecu is receiving the speed signal. From another thread (http://www.r3vlimited.com/board/showthread.php?t=264748) we determined the following:

48 pulses for e30 and 9 for the e36 equals a ratio of 5.33333. If you enter this into the Torque app speed multiplier you will get your actual speed. The e36 ecu doesn't care what signal it's getting, as long as it gets one, as others above have stated.

Hope this helps clear things up.

will give this a shot this weekend, thanks

[mammoth_e30]

I have pin 9 of the X20 (white/gray with yellow dashes) connected to pin 14 of the C101 (black/white) and I don't get any codes or problems with rev limiting. I have an early 96 m52 engine with OBDII still wired up.

Your pin# was correct :D
Brn/Rd.

You are both correct btw, pin 9 of the x20 actually has two color wires depending on if you are coming from the body side (white/gray with yellow dashes) or the harness side (brown/red)

Drove about 30 miles so far with this wiring and no check engine light :) First time in over a year.

[luckysnafu]

Glad we could help you out! Thanks for pointing out the two wire colors as well.

[plain325]

The wire in the x6031 did NOT work for me. I got a speed sensor code on one DME, and no speed signal using either of my 2 DMEs. Hooking my cluster signal to x20 pin9 gives a speed signal(though it is inaccurate by a factor of 5 or whatever).

I wish this info was more readily available at the time.
Now, how do we make a circuit to feed the DME an accurate signal?

[328ijunkie]

Thanks for bumping this you just reminded me I was sent a Seattle circuit thing to test

[nando]

I want to find the K-factor, then no hardware required :)

[plain325]

Thanks for bumping this you just reminded me I was sent a Seattle circuit thing to test

I can splice it in and give it a try if you want to ship it up. Now that my wiring already has some splices in it.

[E36M3LX]

does obd1 m52 need vss as well? sorry for bumping up an old thread, didn't want to make another.

[328ijunkie]

Yes and no. Yes for the most part

[E30m52b28]

You are both correct btw, pin 9 of the x20 actually has two color wires depending on if you are coming from the body side (white/gray with yellow dashes) or the harness side (brown/red)

Drove about 30 miles so far with this wiring and no check engine light :) First time in over a year.

So do you have the black/white wire hooked up as well to go to your gauge cluster?