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  #1  
Old 07-09-2006
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VSS question

Hey I'm got everything hooked up on my overhead console but the speed wire, I need to have a better idea of what I have to hook that wire too so it works right. I'm a little confused on what wire, btw everything else works right.
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Old 07-09-2006
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eh i never hooked up mine works fine...and honistly i dont where it is on your year
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Old 07-09-2006
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its a grey/black striped wire coming off the computer GEM behind the radio bezel on the lefthand side, just splice into it, that way you will get more accurate temp readings.
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Old 07-09-2006
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Quote:
Originally Posted by bwester04
its a grey/black striped wire coming off the computer GEM behind the radio bezel on the lefthand side, just splice into it, that way you will get more accurate temp readings.

Ok I did that and my temp reading is 16 degrees, and I know its alot hotter outside than that.lol Any ideas?
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Old 07-09-2006
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Quote:
Originally Posted by ShadowRanger
Ok I did that and my temp reading is 16 degrees, and I know its alot hotter outside than that.lol Any ideas?
that should not be the VSS, i would be more concerned with the temp gauge its the one with 2 blue wire right? if so it might be bad idk try and hook it up but wow thats off. mines not hooked up and every once and a while it might get stuck on like its first reading like say 74 deg and the temp goes up to 82 and then i restart the truck and it says 82, and fluxuates but never like way off
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  #6  
Old 07-09-2006
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This sounds real dumb, but an easy mistake- make sure its on Fahrenheit not Celsius
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Old 07-09-2006
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Quote:
Originally Posted by Redneckstone
that should not be the VSS, i would be more concerned with the temp gauge its the one with 2 blue wire right? if so it might be bad idk try and hook it up but wow thats off. mines not hooked up and every once and a while it might get stuck on like its first reading like say 74 deg and the temp goes up to 82 and then i restart the truck and it says 82, and fluxuates but never like way off
Well I have the 2 blue wire one and its still 16 degrees and reads ice. I hope its just something hooked up wrong.
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  #8  
Old 07-09-2006
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Quote:
Originally Posted by bwester04
This sounds real dumb, but an easy mistake- make sure its on Fahrenheit not Celsius
Tried that and it reads -9 degress celsius when you hit the mode button to switch back and forth.
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  #9  
Old 07-09-2006
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Yeah, and make sure your VSS connection is very good and secure. Mine wasn't and well, I had to drive 60miles to work with no speedometer because I didn't have enough time to get the bezel out and reconnect the wires.
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  #10  
Old 07-09-2006
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okk cool lol so that one is ruled out.. umm double check all of your wiring, make sure the connections for the temp sensor are clamped tight (or however they are done). If anything, have you tried it without hooking the VSS wire up?
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Old 07-09-2006
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Quote:
Originally Posted by bwester04
okk cool lol so that one is ruled out.. umm double check all of your wiring, make sure the connections for the temp sensor are clamped tight (or however they are done). If anything, have you tried it without hooking the VSS wire up?
Yeah we tried, all it does display 16 degrees no matter if we have the vss hooked up or not. my GEM behind the radio doesn't look like this one.

Mine has just a single gray harness coming out of it. Could that have something to do with it?
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Old 07-09-2006
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Mine wasn't exactly like that, it had a white push button on the front to take it out. The wire that was needed was on the far side as opposed to closest as this picture shows.
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Old 07-09-2006
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Quote:
Originally Posted by heed316
Mine wasn't exactly like that, it had a white push button on the front to take it out. The wire that was needed was on the far side as opposed to closest as this picture shows.
Thats what mine looks like.

Is there anyway to test the temp sensor to see if its working right?
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  #14  
Old 07-09-2006
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Mine worked the first time I hooked it up. I guess it would either be a bad temp sensor or you got the wires crossed up somewhere.
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  #15  
Old 07-09-2006
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i think there are a set of voltage numbers you can test for, Bob (Rwenzing) would most likely know, what does it do when you take disconnect the temp sensor?
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  #16  
Old 07-10-2006
 
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Your using the correct wire it looks like for the VSS. I know Bob or John posted values that the sensor reads at, I think it was Bob that did (rwenzing).

Last edited by W1CKY; 07-10-2006 at 12:53 AM.
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  #17  
Old 07-10-2006
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Quote:
Originally Posted by bwester04
, what does it do when you take disconnect the temp sensor?

It displays OC.

I went out to calibrate the compass and while I was driving around it started to go up by 1 degree increments and then I got it up to 65 mph and it finally popped up 86 degrees which I think is right, so I'm not sure if everything is right or not because it should read the temp outside without having to drive it down the road. So I guess I will see what happens tomorrow when I turn it all on.
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  #18  
Old 07-10-2006
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Quote:
Originally Posted by Matt
Give me 10 minutes and I'll get you the VSS color for the 98-00's off my Ford CD.
That would be great. Thanks for all the help guys and gals, I love this site becuase everyone is so cool and helpful.
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  #19  
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I've been running around without a sensor hooked up to my OHC since I put it in, and it flashes between -40 and ICE.
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  #20  
Old 07-10-2006
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its grey with a black stripe.. lol i know ive done the mod on my 2000
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  #21  
Old 07-10-2006
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Yeah, the VSS sensor is gray with a black stripe. In my 98 it was located in the back left corner, if you are looking at it as it is plugged in.
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  #22  
Old 07-10-2006
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If your console fails to update through the day as temperature rises, that could be caused by the gray/black VSS.

If the temp reading is consistently low by a large amount, that is probably caused by too much impedance from the sensor or its wiring.

Be sure that all of your connections from the console to the sensor and back are clean and solid. Twisted wires and electrical tape won't work reliably.

If the connections are right, then chances are good that you have the wrong temp sensor. The EATC sensor looks identical externally but has 3 times the impedance that the console sensor does.

In the original Explorer application, the sensor connector color codes were:

console:
blue/white
blue/yellow

EATC:
red/orange
pink/black

Keep in mind that the sensors are physically interchangeable in their respective connectors, so it is possible have the right connector colors but still have the wrong sensor.

Last edited by V8 Level II; 07-10-2006 at 10:10 AM.
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  #23  
Old 07-10-2006
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Quote:
Originally Posted by ShadowRanger
It displays OC.

I went out to calibrate the compass and while I was driving around it started to go up by 1 degree increments and then I got it up to 65 mph and it finally popped up 86 degrees which I think is right, so I'm not sure if everything is right or not because it should read the temp outside without having to drive it down the road. So I guess I will see what happens tomorrow when I turn it all on.

Just noticed this. The way I understand it the VSS signal is needed because the ohc won't update the temp unless the vehicle is moving. This keeps the temp from jumping up when sitting in traffic etc.
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  #24  
Old 07-10-2006
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Quote:
Originally Posted by Cape Fear
Just noticed this. The way I understand it the VSS signal is needed because the ohc won't update the temp unless the vehicle is moving. This keeps the temp from jumping up when sitting in traffic etc.

Well I got in my truck and turned the key and to my surprise and delight it popped up 95 degress on the readout and it is 95-96 degrees with heat index outside right now. So I guess all is well. I'll keep an eye on it for a couple of days and let ya'll know what happens. Once again thanks for all the help from everyone in my time of need.
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  #25  
Old 07-10-2006
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yeah just keep an eye on it I watched mine for three days while driving to make sure it was working. It works and I was concerned that it didn't work for nothing.

Hope you have the same experience as me and all is well.
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