GM Pulse Generator for electroc speedo
 

This a new part. They list for $129 from DD, I will take $80 shipped. I had 2, and still have one left!

The missing piece of the increasingly popular early-GM transmission swap!
With late-model GM transmissions containing an internal speed sensor outputting 128,000 Pulses Per Mile, the stock 40-tooth (40 pulse per revolution) reluctor ring provided the factory ECM with a high frequency input. The SEN-01-128 can now recreate this missing high frequency rate when converting to an older style transmission with a mechanical speedometer output.

With a standard female 7/8” thread-on fitting, the SEN-01-128 fits all GM transmissions with a mechanical speedometer cable outlet. Removable weather-tight 10’ cable provides for simple installation and cable routing. 128,000 Pulse Per Mile Sine Wave signal output is direct replacement for the stock GM internal speed sensor, allowing the ECM receive the signals it needs for proper operation.

Fits GM transmission models with 7/8” Male Threading, ie: TH350, TH400, 700r4, 2004r, etc.

http://www.dakotadigital.com/index.c...rod/prd916.htm

Re: GM Pulse Generator for electroc speedo
 

bump

Re: GM Pulse Generator for electroc speedo
 

im interested but have some ?s. i have a 5.3/700r4 with VDO Vision Series Speedometers 437155. not connected, an using my phone gps. is this what i need. an which way would i hook it up

1-Pin Number
1. Not used
2. Red wire from Hall Effect sender
3. Ground and black wire from Hall Effect sender
4. 12V Switched
5. Not used
6. White wire (split) from Hall Effect sender
7. Not used
8. White wire (split) from Hall Effect sender

2-Pin Number
1. Not used
2. Not used
3. Ground
4. 12V Switched
5. Not used
6. Not used
7. Sender wire
8. Sender wire

3-Pin Number
1. Not used
2. Not used
3. Ground
4. 12V Switched
5. Not used
6. Not used
7. Not used
8. Sender wire

Re: GM Pulse Generator for electroc speedo
 

Here are the directions to the sensor:

http://www.dakotadigital.com/PDF/SEN-01-128.PDF

Looks like you have a 12V power, GRND and the sensor output. Which matches up to #3. Let me know.

Rob

Re: GM Pulse Generator for electroc speedo
 

Do you want it?

Re: GM Pulse Generator for electroc speedo
 

Yes. But strap on cash right now. Don't get paid till Wednesday. I'll check back then to see if it hasnt sold

Re: GM Pulse Generator for electroc speedo
 

No worries . I hqve two of them, :D

Re: GM Pulse Generator for electroc speedo
 

Will it work on the 5.3L with NV4500?

Re: GM Pulse Generator for electroc speedo
 

I dont see why not.

Re: GM Pulse Generator for electroc speedo
 

Are you still interested?

Re: GM Pulse Generator for electroc speedo
 

Hi HART ROD. if you can send me your paypal or how to pay. I can send the $ around 3-4am, an when would you be able to ship. hoping to try to have before the wkend when i go out town for a show. thanx you in advance

Re: GM Pulse Generator for electroc speedo
 

Paypal is robhartley@aol.com. It would have to be overnighted fornyou to get it by this weekend.

Re: GM Pulse Generator for electroc speedo
 

its k just ship it regular. doubt i would have time to actually get it put on in time cuz of work. ill send the $ in morning. thanx again

Re: GM Pulse Generator for electroc speedo
 

Sounds good!

Re: GM Pulse Generator for electroc speedo
 

payment sent

Re: GM Pulse Generator for electroc speedo
 

Will be in the mail today. Thanks!

Re: GM Pulse Generator for electroc speedo
 

Shipped, thanks again!

I still have one left, let me know :D.

Re: GM Pulse Generator for electroc speedo
 

Received the part. Thanx again Hart Rod

Re: GM Pulse Generator for electroc speedo
 

Your welcome! :metal::metal:

I have one more left! :D

Re: GM Pulse Generator for electroc speedo
 

Bump

Re: GM Pulse Generator for electroc speedo
 

thanx again HART ROD. finally got around to installing last wk. gauge is finally working.

Re: GM Pulse Generator for electroc speedo
 

Sweet! :metal: I've got one more for sale if anybody else needs one.

Re: GM Pulse Generator for electroc speedo
 

bttt

Re: GM Pulse Generator for electroc speedo
 

If it only fit and worked on an nv3500. Ugh good luck!

Re: GM Pulse Generator for electroc speedo
 

Why wouldn't it? Isn't that where your speedometer cable mounts now?

Re: GM Pulse Generator for electroc speedo
 

But an NV3500 already has a GM 40 pulse speed sender....

Re: GM Pulse Generator for electroc speedo
 

Will that work with the newer electric gauges?

Re: GM Pulse Generator for electroc speedo
 

I haven't made the effort yet to get my two wire (yellow/purple) vss wires to the NVU speedo yet... was under the impression that i need the signal converter box SN74Z...

Re: GM Pulse Generator for electroc speedo
 

Are you trying to use the factory cable speedometer?

Re: GM Pulse Generator for electroc speedo
 

Nope, got a new NVU electric speedometer gauge

Re: GM Pulse Generator for electroc speedo
 

Then my signal generator will work for you.

Re: GM Pulse Generator for electroc speedo
 

NV3500 VSS has the 128000 pulse per revolution output same as this signal generator. No option for cable drive on NV3500.

Re: GM Pulse Generator for electroc speedo
 

so smart. thank you. I couldn't find the signal pulse that it had.

Re: GM Pulse Generator for electroc speedo
 

It's 40 pulse per driveshaft revolution and 128000 pulses per mile.

Re: GM Pulse Generator for electroc speedo
 

Good info! He should be able to just attach the wires to his speedo and Rock and Roll, :metal:.

Re: GM Pulse Generator for electroc speedo
 

Hart_rod, yes, I hope so, but little wire tracing for the pcm speed output to speedo i should be good. Thanks guys, and sorry to steal the thread man!

Re: GM Pulse Generator for electroc speedo
 

bump

Re: GM Pulse Generator for electroc speedo
 

DBW engines from 03 up use the 128K A/C VSS signal input. TAC module becomes cruise control from PCM via UART serial data. Two wire input to PCM on C1, cavity 21, VSS Low Circuit #821 (PPL/WHT). C1, Cavity 20 VSS High, Circuit #822 (LT GRN/BKL). Twist 9 time per foot to help reduce mutual induction. PCM VSS signal can be programmed to fit your speedo as VSS signal leaves PCM C2, cavity 10 (WHT) to speedo. Check your schematic and speedo requirements. TAC module uses B+ signal inputs for Cruise operation w/Drive-By-Wire (RPO Code-JK4) Just trying to be helpful.

Re: GM Pulse Generator for electroc speedo
 

The LS engine swap I have planned, is using an 2003 Gen3 5.3L truck engine. According to DD, SEN-01-128 produces an A/C type VSS signal required to allow my PCM to operated correctly. As an ASE Master Tech, if fixed stuff, not building from mixed parts. The PCM has two circuits VSS input with 822 (LT GRN/BLK) connector C2 (GRN) cavity 20 is VSS Low. Circuit 821 (PPL/WHT) connector C2 (GRN) cavity 21 is VSS High. With DD HF Sensor, would signal out go to PCM high? Would ground go to PCM low? Is this the correct method used to produce a 128K VSS input?
The PCM can be programmed to produce an output to match anyone's speedo, which is circuit 817 connector C2 (GRN) cavity 50 (DK GRN/WHT) is PCM buffered output to IPC, Radio and optional equipment like Rear Wheel Steering and Rear Object Sensor Control Module, via Splice Pack. On my 03" donor, the PCM uses C2 (GRN) circuit 821 cavity 49 (YEL/BLK) is used to provide VSS input to the ABS module, that I will not be using.
I am just trying to follow along to make sure I get this straight in my head first...before the wallet opens.

Re: GM Pulse Generator for electroc speedo
 

Yes. The black wire from the sensor goes to chassis ground as does the VSS low PCM connection when using the DD sensor.

Yes.

Good plan.

Also, I don't know if you realize it, but you're posting your questions in the LS classified section. You'd probably get quicker response in the LS engine swap forum.