im trying to calibtrate my speedo for my 2.73 to 3.73 gear swap. I use the calulator and it comes up with the values i apply, program and when i start my car my speedo doesnt work. The rpms dont work at all and the speedo jumps from 0 to 150.

help?

correct speedo scaler values?

could someone with tunercat plugin
245-50-16, auto, fbody, 3.73 gears stock tranny and tell me the values?

 

Did you press calculate to see the changes?

This is what I get:

Speedometer scalar__30
Speedometer scalar fraction__0.991
Speedometer scalar scantool__50.479
Time between pulses for stop__29.715
Pulses per driveshaft rev.__40


Did you then press apply?

 

yep hit caculate and apply

now i just manually did the calculations with the formulas and a calculator.

i got
Speedometer scalar__30
Speedometer scalar fraction__0.99
Speedometer scalar scantool__36.199
Time between pulses for stop__1.526
Pulses per driveshaft rev.__40

and my tach works now but speedo stays at 0 till about 10 mph then shoots up to 150

 

when do help-version info my PCM_EE is version BA. i wonder if i have the wrong file.

 

My EE version is AN. Did you try the numbers I posted? What numbers did you get from your version? Were they the same as mine?

 

yeah they were the same. i have a feeling my PCM_EE file is screwed up. Hopefully the tunercat people send me the new version today.