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Old 07-30-2016, 10:29 PM   #15
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Location: South Jersey
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My dodge 1987 does not have a "speed control wire", it is simply too old. My cruse control needs to have a sender on the speedometer cable. That generates the "speed control signal" that the servo needs to pull the throttle.

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Old 07-30-2016, 10:49 PM   #16
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The last post was somewhat long. I apologize !
I need to know where is the VSS wire located? From my research it looks like it may be a wire connected to the back of my speedometer, next to the cable.
I will look again tomorrow for it. If it is there, it would be one of 3 wires in a plug, any idea which one I would connect to?

Same with the tachometer wire, which terminal would I connect to?


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Old 07-31-2016, 06:02 AM   #17
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Some early model vehicles used a transmitter on the speedometer cable to create the VSS signal.

If you have a voltmeter, place it on AC voltage mode, then go for a drive and measure the voltage at the wires. The one that gives the highest AC voltage id probably the VSS wire.
2001 Coachmen Mirada (Ford F53 6.8L V10) - Toad 2003 Saturn Vue.
It won't do MACH 2, but I can get a sandwich and take a pee.
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Old 07-31-2016, 06:11 AM   #18
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I'm I could not resist, how we did it in hicksville.

just kidding
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Old 08-01-2016, 08:02 AM   #19
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KerriVan, that reminds me of back in the late 40's, my father let a friend drive his old car back from Oklahoma. He new his friend drove wide open so he put a carefully placed wooden block beneath the pedal so he could not mash it but so far. When his friend got to SC, he told my dad that the car picks up speed pretty good but the top end sucks! HAHA
I will check the tach for that wire. I found a wire that has a condenser on it, that may be the wire I need.

In the mean time, I found the information from Rostra. The tach wire goes to the negative on the coil, or in my case the negative on the electronic ignition. I think it has a coil built in.

They said I need the magnetic kit that is placed next to the crank shaft. So I ordered it, should be here Thursday. We leave Saturday on our trip!
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Old 08-02-2016, 08:31 AM   #20
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Read and read the instructions, find more into them every time!
Under trouble shooting is the procedure for doing a dx test on the unit once it is completed.
I actually found an orange wire coming from something that could be a Speed control wire. It did not work.
Now I see where I can do the dx test and there are instructions on how to change the module setting. Apparently the module may need to be set under other modes to recognize my system.
Heading out to check it now!
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Old 08-03-2016, 08:46 PM   #21
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Got the drive shaft magnet device in this morning. Did not take long to mount it. Test drive and it worked great, so happy!
Had to phone tech support though, the settings for the module in the directions was wrong.

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