HELP! CJ dash swap VSS problems... - Jeep Wrangler Forum

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Old 01-10-2013, 09:38 AM   #1
moku's Avatar
Join Date: Jun 2010
Location: Strongsville, OH
Posts: 48
HELP! CJ dash swap VSS problems...

OK, So I put a CJ dash in my '95 YJ with a 4.0L engine. Because I wanted to use the mechanical CJ speedometer, I used a speedometer gear pinion housing assembly from a '91 YJ - which provides a connection for a speedometer cable and a 2 wire VSS connection.

The Jeep 4.0L originally had a 3 wire VSS. Using the information from several Jeep forum postings, I connected the WHT/ORG (pin 47) wire and the BLK/LT BLU (pin 4) wire to the new 2 wire connection.

The Jeep starts and runs fine, but dies almost every time I come to a stop. I assume my VSS is not sending the correct signal to the PCM for the idle speed control.

Does anyone know if I used the wrong 2 wires, or if there's a way to fix this?

Thank you in advance!

Once I'm over the frustration of this VSS, I'll post a picture of the dash. It looks great and I learned a few things along the way.

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Old 01-11-2013, 08:20 PM   #2
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Join Date: Jun 2010
Location: Strongsville, OH
Posts: 48

It was recommended on another forum to switch the ground and signal wires on the 2 wire plug and also reset the battery.

I rewired it today but didn't get a chance to try it out.

Any other ideas?

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Old 02-19-2013, 05:07 PM   #3
Join Date: Mar 2010
Posts: 1
Did this work out for you? I have a '92 and I have almost everything that I need to retain the CJ gauges, but I don't want to install the dash until I figure out how to get around the VSS issue (I was a click away from ordering a '91 VSS when I realized that it was a two wire VSS). Also, did you use a YJ cable for a '91 or a CJ cable? Any tips you have for the swap would be very appreciated.
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Old 02-19-2013, 05:37 PM   #4
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Join Date: Aug 2012
Location: Sarasota, FL
Posts: 552
Yes more info. I'm waiting on my flat dash to come in the brown truck.
"Some people spend an entire lifetime wondering
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