p/n safety switch ground
#11
04-29-2017, 03:25 PM
If the PCM is being removed, but if you still want lockup and overdrive, there's always the method used by PATC for their 727/518 upgrade kit ..
https://transmissioncenter.net/shop/...iring-diagram/
RwP
https://transmissioncenter.net/shop/...iring-diagram/
RwP
#12
05-04-2017, 07:27 PM
ut the middle ire from the neutral safety switch plug. Put a terminal on the end and ground it. Done. those years the computer doesnt really care if the truck has an auto or a stick in it. and yes you might still get a code 37 anyways, with a stick it would be known as a "false" code' Won't trip the check engine lite.