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 Post subject: who knows about Vehicle Speed Sensors?
PostPosted: Mon Sep 23, 2013 10:16 pm 

Posts: 237
hey guys, long time no talk. i've been busy as hell with the new house and the garage we built(1,040sqft, 10' walls, bathroom with shower, infloor heating and floor drain), but thats a long story and i'll get right to my point. last year when i first got my truck running with the T56, the truck would start popping and banging when i hit about 5500rpm, and i couldnt figure out why. after some guessing, i figured out that without a VSS on the trans, the ECU always thinks the truck is standing still, and i was hitting the launch RPM. i upped it to 7500rpm and fixed the problem, and figured some day i would have to rig up some kind of tone ring on the output shaft of my trans and tap a Mitsu VSS into the tailhousing. wasnt looking forward to it. then, today, while pulling my rear end out, i had a holy S**t, what if moment....

i'm running an Explorer 8.8", and have it pulled to narrow it the cheap/easy way(get another passenger side axle, hack 3" out of the driverside tube, weld the end back on, move the spring perches), and swap to 4.56 gears(even at 2600lbs and 4.10's, the truck was a dog out of the hole with the T56's 2.66 first gear). the rear had ABS, and when i put the LSD in it, i knocked the tone ring off the ring gear just because i knew i wouldnt be using it. i was going to figure out some kind of plug for when the sensor mounts(at the top of the housing) when i started thinking. do you guys think i could hook up that ABS sensor to the ECU's VSS wiring? i can't imagine either would be designed for terribly different voltages, and if all the ECU needs is some kind of signal that the truck is moving, do you think the ABS sensor could provide it? opinions?

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Dustin
1967 Sunbeam Alpine - drop top cruiser project(SOLD)
1972 Plymouth Duster - B-1 headed big block project
1988 Dodge Ram 50 - 4G63, T56 6 speed, 4.88 Ford 8.8 rear
2010 Dodge Charger Hemi police issue - "Elwood"


Sun Jul 26, 2009 11:40 pm
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 Post subject: Re: who knows about Vehicle Speed Sensors?
PostPosted: Mon Sep 23, 2013 11:08 pm 
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Location: Boerne, TX
I would bet the ford sensor is three wires just as a Mitsu one would probably be. Really all your needing is for the ecu to detect speed to kick off the two step in the ecu. I'm assuming your running dsmlink. You will need 3 wires to go to it. A sensor ground, a 5v reference, and a signal wire feeding the speed back to the ecu. Your ecu has the ability to control it.

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Sun Nov 01, 2009 8:39 pm
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 Post subject: Re: who knows about Vehicle Speed Sensors?
PostPosted: Tue Sep 24, 2013 9:18 am 
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Dustin, I think that would work too. Just give that ECU some kind of oscillating signal when moving and it should be happy. Do it and report back! :)

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Jeremy N.
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Sat Mar 18, 2006 7:40 am
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 Post subject: Re: who knows about Vehicle Speed Sensors?
PostPosted: Tue Sep 24, 2013 9:48 am 

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Will do. Problem is now I gotta dish through all my crap in storage to try to find that tone ring I knocked off the ring gear.

On the plus side it looks like my 4.56's are machined to fit the ring, let's just hope I can find it. Also, with the Explorer rear and SHP front wheels in the back(8" wide but with more backspacing), my back wheels stuck out about 1.5" on either side. Most people didn't mind how it looked, but it drove me crazy. Taking 3" out of the rear should at the very least make the wheels sit flush, if not bring them in just a hair. Can't wait!

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Dustin
1967 Sunbeam Alpine - drop top cruiser project(SOLD)
1972 Plymouth Duster - B-1 headed big block project
1988 Dodge Ram 50 - 4G63, T56 6 speed, 4.88 Ford 8.8 rear
2010 Dodge Charger Hemi police issue - "Elwood"


Sun Jul 26, 2009 11:40 pm
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 Post subject: Re: who knows about Vehicle Speed Sensors?
PostPosted: Tue Sep 24, 2013 9:55 am 

Posts: 204
Location: Lloydminster, Saskachewan, Canada
I have a t56 magnum and it has a speed sensor installed on it from when it was built. Possibly yours does too? It might save trying to find a ring and reinstall it.

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Sat Nov 03, 2007 12:45 pm
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 Post subject: Re: who knows about Vehicle Speed Sensors?
PostPosted: Tue Sep 24, 2013 10:57 am 

Posts: 237
Joe Bueckert wrote:
I have a t56 magnum and it has a speed sensor installed on it from when it was built. Possibly yours does too? It might save trying to find a ring and reinstall it.



See, I was wondering if my trans would have something on it already, but I don't remember seeing anything that I thought it could be. I'll have to give another look. If nothing else, this solution could work for the guys who run the Mitsu, Yota, Gm Auto or whatever else, and in my area at least, finding an Explorer or Mountaineer in a junk yard is a lot easier than finding a 4th gen F body. Especially if the plug is specific to 6 speed cars.

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Dustin
1967 Sunbeam Alpine - drop top cruiser project(SOLD)
1972 Plymouth Duster - B-1 headed big block project
1988 Dodge Ram 50 - 4G63, T56 6 speed, 4.88 Ford 8.8 rear
2010 Dodge Charger Hemi police issue - "Elwood"


Sun Jul 26, 2009 11:40 pm
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 Post subject: Re: who knows about Vehicle Speed Sensors?
PostPosted: Tue Sep 24, 2013 10:58 pm 

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well guys, bad news. i pretty sure i threw the tone ring in with scrap when i moved, so i won't get to try this out. luckily, i just bought all 3 pigtails for my T56 off ebay for $22, and i should be able to hook up the T56's VSS(yes it is there, yes, i'm a dumbass). hopefully someone will try this and see if it works though. this would be awesome for guys running a trans without a VSS.

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Dustin
1967 Sunbeam Alpine - drop top cruiser project(SOLD)
1972 Plymouth Duster - B-1 headed big block project
1988 Dodge Ram 50 - 4G63, T56 6 speed, 4.88 Ford 8.8 rear
2010 Dodge Charger Hemi police issue - "Elwood"


Sun Jul 26, 2009 11:40 pm
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 Post subject: Re: who knows about Vehicle Speed Sensors?
PostPosted: Mon Oct 14, 2013 3:23 am 

Posts: 58
i was lookin at ways to hook up the vss in my mighty max since im using the stock trans and rear axle, i thought this was neat and worth a look


http://www.google.com/url?sa=t&rct=j&q= ... 1q85dyzOXw

hope that works lol

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Sun Jun 30, 2013 11:19 pm
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 Post subject: Re: who knows about Vehicle Speed Sensors?
PostPosted: Mon Oct 14, 2013 6:44 pm 
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Location: Central NY
Get the VSS off a 2K or newer Montero Sport if you want electrical only, or get the terratrip one from subesports that Jeremy found. That's only if you have a Mitsubishi transi though...

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Wed Jun 24, 2009 12:21 am
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 Post subject: Re: who knows about Vehicle Speed Sensors?
PostPosted: Mon Oct 28, 2013 1:45 pm 

Posts: 237
yeah, i have a T56, and i just bought a Pigtail wiring kit off ebay for $22. for now probably just wire up the T56;s VSS to the ECU so i can use launch control, but in the future i guess i could get an aftermarket speedometer for a 4th Gen F body. not bad.


BTW, the truck drives so awesome with 4.88 gears now; just like it should. i can even use 6th gear, although i get boost creep if i accelerate too much at all. pics coming when i get time

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Dustin
1967 Sunbeam Alpine - drop top cruiser project(SOLD)
1972 Plymouth Duster - B-1 headed big block project
1988 Dodge Ram 50 - 4G63, T56 6 speed, 4.88 Ford 8.8 rear
2010 Dodge Charger Hemi police issue - "Elwood"


Sun Jul 26, 2009 11:40 pm
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