Need Some Info on trannys

[94GPGTP]

I need the pulse rate for the speedo for a 90 TGP and a 89 GP LE 2.8 5 spd.. trying to get my speedo corrected to the 5 spd tranny and i dont know the pulse rate.. as of right now im 10 MPH off..

[BXX]

I know the signal should be 4000 pulse per mile to the PCM. From there the PCM uses gearing calculations to send a signal to the cluster.

 

So you'll need a chip burned (im assuming you dont burn your own chips)

[RobertISaar]

the later setup used a 4000PPM signal, but thses ones range anywhere from ~40,000 to less...

 

if you can get me the BIN(or at least the BCC) i can try and tell you what the road speed constant and pulse divisor is for both...

[mfewtrail]

There's some discussion on this subject here that should help you: http://www.tgpforums.com/index.php/topic,2708.0.html