shix

Does anyone know if the pinouts are the same for 94 and 95 pcms?

Gojira94

iTrader: (4)

Images 9-12 are from 94:

http://www.lt1swap.com/1994_f_body_w...ss_schemat.htm

And from shbox.com, the same pages for a 95:

http://shbox.com/1/4th_gen_tech2.html#1995_pcm_pinouts

I know that D6 adds the PWM TCC solenoid on autos from 95-up. They look largely the same otherwise. compare the pins you're looking for and see whether you're looking at differences.

shix

thanks a bunch. very helpful

Gojira94

iTrader: (4)

Just went through them- definitely identical with D6 being the on change, only on A4s. That being said, the harness connector ends have 2 differences. 1) The opti pigtail (swappable both ways- 94 pigtail plugged onto a 95 harness & 94 pigtail plugged onto a 95 harness) and 2) the transmission connector case on an automatic- 95 has a connector present on pin U (to use pulse width modulation to control torque converter clutch lockup) where 94 doesn't have one there. Having the extra pin does nothing with a 95 harness, 94 PCM & 94 non-PWM transmission. In a case where you have a 95 trans swapped in that needs PWM and the PCM is 94 and harness is 94, you'd need to add a pin from U on the trans case connector to D6 on the PCM end and add PWM to the tune, in essence throwing a 95 automatic car tune onto a 94 PCM.

M6 cars, no differences except the opti pigtail, no effective differences between the PCM connector pinouts.

shix

I really appreciate you taking the time to go through them for me. Thanks