I'm trying to confirm how I should have hooked up my VSS sensor. I bout an Autometer VSS Hall effect sensor with my TK600 to go into my 91. The sensor is Autometers Model 5292 (16 pulses per revolution / square wave). I'm a little concerned because I thought our stock VSS signal that the ECM looks for is 4 pulses per rev. Anyhow, I wanted to know what you guys are running for electric VSS sensor and which of the pigtail wires you used (yellor or purple) only, I'm not interested in cable driven. Thanks,

 

i used a dakota digital ratio adapter and wired it right up to the electric sending unit on the passengerside of the trans, which i am told is a ford sending unit? It worked fine, my speedo is 3 or 4 mph fast, but i can deal with that later with tires and my future rear swap.

as for the pigtail wires, i used them both, i forget exactly but i believe the yellow is the ground, purple is the signal

 

86TA, thanks for the reply. I thought that was what I was going to have to do. Looks like I'm placing a summit order for one dakota box.... Would / could you find an oppurtunity to look at how you wired yours up? I mean was the yellow left disconnected and purple used, vice versa, etc?

 

both the yellow and purple are hooked up.

do you have the pigtail for the speedo sender on that side of the trans? mine didnt come with it and i had to order it later.


tried to get a pic, but my camera is a useless POS up close, and in general

here is my wiring, should be the same, for you.

the Dakota box i have # SGI-5 C

you need to use the yellow and purple wires under the passenger-side dash as well as the wire from the DRAC, should be a yellow box and i believe it was originally attached to the ecm

Red/Black stripe wire from the DRAC is used for the accessory power to the DD box

Black/White stripe wire from the DRAC is used for the ground for the DD box

Yellow from the DRAC is the speed sensor ground for the DD box

Purple from the DRAC is the speed sensor signal wire for the DD box

Green/Black stripe wire from the DRAC is the signal to the speedo and i have it in the OUTPUT 4 on the DD box.

there are two push buttons on the DD box, up and down, used for fine adjustment of the output signal, i had to lower the speed all the way it would go to achieve my close to correct speed, you have the same gears as me so you will probably have to do the same thing.

my car is an 86, i dont know if the wire colors are the same from year to year, if not, you will have to find a wiring diagram and hope for the best. the Chilton diagrams leave a lot to be desired and require a lot of guess work.

 

all hail you guys and the search button

just bought the stuff i need to burn proms and realized i cant really tune the computer without the vss hooked up. Guess ill be buying a digital 5 box from them as well, and revisiting this post on how to hook it up

 

hey was just wondering where you guys got the pigtail for the tko transmission. unless i missed something thats all i need to buy other then the converter box

 

you have to order the pigtail for the ford speedsensor, on the passenger side, from fortes, call and tell them what you need, there are two different ones, they sent me the wrong one first and i had to get them to ship me the right one. One has a very small flat connection, the other is larger, kinda like a gm weather-pack connector. If you have a t5 speedsensor, you can use the mechanical adapter, if you bought from them and they included it with the trans.

 

thanks as always for your help, ill get in contact with fortes.

not sure what you mean by using a t-5 speed sensor.

car is a 90 automatic car so everythings electric.

be nice if fortes just included the pigtail with the trans, youre obviously going to need it

 

re- hashing this again, i need to wire in my dakota box soon so hopefully you can help me 86

so basically there is a yellow box thats part of the back of the ecm that has a connector with 20+ wires in the back of it. All i need to do is unpin the wires from the connector and insert them into the dakota box as you described and i should be off to the races?

my other concern is the black/white stripe wire......theres no black wire with a white stripe, there is one that is a dark dark tan borderlining on grey with a white stripe, im hoping this is the one you were talking about?

you also say "you also have to find the yellow and purple wires under the dash" theres a yellow and purple wire that are also part of what is pinned together in this connector on one far edge, are these the two wires youre talking about because i dont see anything else?

 

i assume things are similar on you 90 as my 86, does the 90 camaro have a electric speedo or a cable driven one?

There is another yellow box, about the size of a pack of playing cards attached to the computer with its own wiring harness. those are the wires you need to work with. The purple/yellow wires are the wires that come from the speed sensor on the car, my car was an auto, if your was a stick to begin with i dont know if there is a difference in color. they are separate from the main harness and connect to the yellow box i mentioned earlier, i think there was also another connection before the box.

If you can grab a pic of the wiring mess under the passenger side dash with the computer pulled down i can probably direct you further.

 

speedo is electric, and car was auto from the factory.

The wire right in the middle of the second pic is the one that i wasnt sure if was right when you say the black /white stripe because its more of a grey

and this is a really stupid question but you un-pin them from the connector and wire from the harness into the DD box right? not wire the DD box into the computer.

computer with yellow box


harness

 

that connector in the first pic came out of the yellow box? wow, its alot different than mine, mine only had 7 or 8 wires. I just cut out my DRAC box, since all the wires ended up going to the new dakota box. Your going to have to dig out the haines/chiltons manual and see what the wiring diagrams say, the colors may be different that what i have.

I would assume the computer is still functional in your car? If its not hard to un-pin the wire i would rather do that than just start cutting things. Hmmmmm, i will have to dig out my wiring diagrams for 90 birds and see what it says for the wire colors.

 

well the wiring diagrams that i have really suck and dont list anything other than the hot wire to the buffer.

the black/white wire in question just needs to be a ground, just run a wire to the body somewhere under the dash, maybe by the kickpanel or something. Just looking at you wires, im pretty sure the wire colors i listed wont be the same, you should double check you ahve the right ones before you start. The speed sensor wires are ok, they are still yellow and purple. IIRC, from there you just need the tach wire, acc power, ground and your done.

 

that connector came out of the socket infront of it, which im assuming is the yellow box youre talking about, ya its an 8d computer so i guess everything is completly different, crizzap

 

i guess im a little confused here, there should be a completely separate yellow box, its not part of the computer in my car, its a separate piece, you said the plug you pulled came out in front of the yellow box, im confused

 

i have a helm inc manual and have been studying up (as confusing as i find it)

looks like the LO3 cars had a VSS buffer, like the box you described, and all of the other model cars the wires are pinned directly into the ecm, no buffer, im trying to sort out as best i can but wont be able to photocopy the schematic until tommorow

started this thread in electrical if you think you might be able to be of any help

 

19doug, the answer to my next question will help me with yours. I have my vss working with the autometer vss I received with my tranny but I'm also doing my own tuning/programming.

Question: Are you going to be using a stock chip or are you custom tuning as well?
Question: Which VSS sending unit are you going to be using?

 

based on what 86ta had said in previous posts he said that the vss sender that comes with the transmission worked fine. I plan on using the ford one and just ordered the pigtail for it from fortes today.

I'm just bypassing the ecm and running the signal directly into the dakota box, which will be wired to power and the gauge cluster.

i am burning chips for the motor in sig but dont know anything about messing with the vss value.

should also mention that i did figure out what wires i need to use (seeing as how i failed to post a link to the other thread i started) i have a helm inc manual just took me a while to find what i was looking for.