Quote Originally Posted by Unorthodox122 View Post
Hi Dave thanks for your response. I had read that, and havent really figured out what to do because it seems different in the maf code.

but its on back burner now, instead of making another thread, I have an issue with the 7427, all of the sudden my truck always thinks its in drive , so switching in and out of gear have no effect.

I am looking at pin e5 - P/N switch
What would make this suddenly stop? Where would I trace that wire to, my switch at column?
using 700r4

I was never able to get the p/n working on a 7427. All of my swaps show in drive always except for the ones where i swapped in a 4l60e as well. And my truck with a maf swap and th350 it just idles at 650 in drive and park.

The TBI MAF code is already set to control a fan using pin E1 as a switched ground. Under scalers there's a Low/high temp settings for 2 fans....i'm not sure which is for pin E1 so i set both fans to the same turn on/off temps. Then my second fan is turned on by my A/C.