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Old 05-12-2006
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Another OHC Question

I recently installed an OHC, and everthing went great (thaks to John's How-To)! The question is that I have the wire that is to be connected to the GEM. I have a 1994 Ranger XLT, and when I looked behind the stereo, I couldn't locate anything that looked like the GEM. Is there a GEM on the 1994, and if so where the heck is it. If there is not one, what am I supposed to do with this wire? Right now it is not hooked up and the temp stays the same and does not change with the tempture. Any and all help is greatly appreciated. Thanks all!
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Old 05-12-2006
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i dont think a 94 has a VSS wire.
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Old 05-12-2006
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In the 93 schematic (I don't have 94), there is a VSS wire that goes from the speed sensor on the transmission to the PCM and the Speed Control Amplifier. It is gray/black, the same color code as in John's How-to. I don't know if it has a compatible waveform and amplitude for the overhead console input but it would probably be your best bet for a speed signal.
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Old 05-12-2006
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Would you happen to have any idea or pics on where I could find this wire?
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Old 05-12-2006
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Quote:
Originally Posted by JDogg646
Would you happen to have any idea or pics on where I could find this wire?
I don't have a 94 to look at. The Powertrain Control Mudule should be in a cavity in the firewall near the driver side fender and the Speed Control Amplifier looks like it is in the dash up behind the glove box. There are two different gray/blacks at the SCA - you want the one in the shorter of the two connectors.

No guarantee that this will work for the console but it is about the only choice for a VSS signal.
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Old 05-12-2006
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The signal levels will be compatible.

Thanks for your comments on the how-to, also. Glad it worked out and I think you're the oldest truck to do it successfully so far. Congrats!
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Old 05-12-2006
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Well thank you! With your How-To, there is no going wrong, really straight forward. I will look for the wire that I need and let you all know how it works. Thanks again, everyone, for all the help and support!
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