ok so i did alot of researching on the forums and i think i got everything. here is what i got to make my speedo work. let me know if this is it. if there is anything im missing please let me know. thanks

http://www.oehq.com/acdelco-parts_AC...-Connector.htm

http://www.rmsautoparts.com/proddeta...?prod=213-3513

http://www.google.com/products/catal...wAA#ps-sellers

 

Mine works. The shop used the VSS from a mid-90's Chevy pickup. The PCM has to be programmed for the A4 because of the 40-pulse per output shaft revolution. Then you have to have the 4L60E shift functions programmed out, or you will get a lot of codes for the missing 4L60E interfaces.

 

so i did get everything? just need to get the 4l60e interface codes programmed out and then get the A4 codes put in?

 

damn i got a mailorder tune from MADTuner.com and when they asked what tranny i have in it i just said TH400. so i shoulda said A4?

 

im also in the same situation.so far the part numbers i think we need is the vss reluctor wheel #8655315 and a pickup #8655291

im only confused about getting the pcm reprogrammed.i dont have a gear vendor so i only have 3 gears and a man valve body and the car shifts fine.is getting the 4l60e codes deleted necessary?

 

i got that reluctor wheel but not the pickup number you said i got the gm 213-3513

 

The Gear Vendor has nothing to do with it. They just moved the same sensor/reluctor to the GV when they installed it. I ran it for a year or so before I had the GV.

If you told him you had a TH400 he would have programmed out the 4L60E control codes. What was in the car before the TH400? I started with a T56, and had the M6 program. T56 only has 17 pulses per output shaft rev, so my speedo read almost 2.5X actual speed. In that case, switching to an A4 program would have set up the speedo for the 40-pulse signal from the VSS/reluctor wheel they used. My solution was to keep the M6 program and us a Dakota Digital SGI-5 interface box:

http://www.dakotadigital.com/index.c...rod/prd126.htm

 

What did a 95 z28 come with? 4l60e? it was standard it still has the clutch pedal and neutral safety switch so i have to press the clutch in to start the car.

 

If you have a clutch, you had a T56/M6. If you just get the VSS for the TH400 and hook it up, your speedo will read high - 2.35 X actual speed, and your odometer will add 2,350 miles for every 1,000 miles driven. The stock A4 trans for all 4th Gens, 1994 and up is the 4L60E, electronically controlled by the PCM.

You either need to: 1) use the interface box like I did, and put resistors in the harness connectors for the T56's skip shift and reverse lockout solenoids, or have the codes for those "programmed out". Or: 2) have the PCM programmed with the A4 program, and have all the 4L60E interfaces programmed out. Maybe your tuner has a better way to do it at this point in time..... I did my conversion 10 years ago, and I don't use the stock PCM for much - mainly the speedo, the IAC control and the fan control.

You need to wire your TH400 shifter up correctly. The switch on the clutch, showing it is depressed so the starter will engage, is the equivalent of the park/neutral switch on the shifter. NHRA requires that you have a functional neutral safety switch (General Requirements 2:14), along with a spring loaded reverse lockout system. Usually, the reverse light switch is on the shifter, so you would connect the harness connector that used to attach to the reverse light switch on the passenger side of the T56 to the switch on the shifter. I have a B&M Pro-Ratchet, with a full manual reverse-pattern valve body, and everything in the car works the way it did when it left the factory.

 

so im thinking i had the 4l60e so get them programmed out which madtuner should have but dont know what they programmed onto the pcm ill have to give them a call. then put the 3 parts i got for it into the tranny then get that interface box that you got and get the speedo right? well my reverse light doesnt even work. i took my car to a local tranny shop and asked them to take a look at the shifter since it only has Park, Reverse, and drive and no low medium or high gear. he looked at it and said it seems that i had a powerglide shifter put in this and that i should look at the part number and search it and see exactly what shifter i have for the car. and that i am going to need to get the correct shifter.

 

What part of this are you having a problem with? If you had a "standard" and you have a "clutch".... you did NOT have a 4L60E. That is a 4-speed automatic (A4) transmission. You had a T56 6-speed manual transmission.

Why are you installing a TH400?

 

oh ok well when i got the car. the tranny went out on him so he called a local shop asking for a tranny that will go in a camaro and they gave him the th400 and shifter for like $150 or something like that. and when he put it in he just slapped it on and that was that. pretty much half assed it. i didnt know the 4l60e what auto so we were thinking to different things. and the interface box that you bought to straighten out the speedo does that stay hooked up on the car even after your done fixing the speed problem?

and i wouldnt need those 3 parts? just the VSS and interface box like you got? or i would still need the reluctor, VSS and wiring harness

 

The VSS consists of two parts - the reluctor gear and the sensor. You have to install both those parts. Third part you linked in your original post is a harness connector for an air compressor. Not sure why you would need that, since there is no air compressor involved.

Your car should still have the harness connector for the stock VSS. That should fit on the new VSS. That wiring is already connected to the PCM to feed the speedometer. To add the Dakota box, you mount the box inside the car - mine is under the console - and run the VSS harness wire into the car, cut it and connect one side (VSS end) to the input of the Dakota box, and other side (PCM end) to the output of the Dakota Box. The Dakota box also needs switched 12V power and a ground. It stays in the circuit.

Are you aware that the TH400 is going to kill your gas mileage because it has no overdrive, suck up extra power, and has a numerically lower 1st gear than a 4L60E that is going to hurt performance off the line. I only run one because I needed something that would hold up to 800HP and 800ft-lb of torque. But I went to a 4.11 rear axle to overcome the low numerical 1st gear. Then, on street tires (25.7" vs my 28.1" slicks) I was running close to 4,000 RPM at a 70 MPH cruise. That's when I picked up the Gear Vendors overdrive to return to to "only" a little over 3,000 RPM at 70 MPH. The rev's are going to drive you nuts without an O/D gear.

 

The harness I got was from a thread I saw from someone tht made a similar thread to mine and you posted a link on there thread that had those 3 exact part numbers listed to make it work. So I went and got them assuming that I needed them but when I searched the part number the description I got said air compressor and VSS harness used for both since the pigtail is the same. And ok I'll get the interface box that you mentioned and how hard is the box you got? Plug and play sort of situation? And I won't lie I don't know much about the th400 it was in the car when I bought it and the speedo didn't work then. How much was the reverse manual valve body cost you for your th400?

 

The Dakota box comes with instructions. As I described in my post, it gets spliced into the harness wires for the VSS, and needs switched 12V power and a ground. You have to wire it up yourself, nothing comes with it.

I don't know the specifics of my trans, like costs for individual parts. I know NOTHING about an automatic, knew the shop that built my engine has a reliable trans builder they use, so I told them what I wanted and they built it.