Question ??? It looks like you have a Stock Gas Pedal ! Im installing a Holly Term X Max into a 2003 Silverado RCSB. Ive swapped TB to a 6 pin ( it had an 8pin). The pedal is stock with an adapter harness from current performance.
I removed the Tac mod and ran the holly pedal wire straight to the pedal with the adapter harness. I cant get auto TPS to learn. I bought the longer harness not the short one is that right?
Thanks for the write up it was most helpful. !!

 

We're you able to just tap into the holley harness to get your trans temp to work on your dash

 

from the youtube video OP posted, he's using the stock ecu and stock *paired down* harness to make the trans temp work on the dash.

 

I have made a similar harness to this im noticing an issue though, when i plug in the battery, the Battery light indicator is on, on the dash, and the PRNDL light indicator is on, mind you the key is not even in the ignition. Im not utilizing the stock wiring to power on the alternator so that could be my assumption to the battery light, my main concern is the PRNDL light indicator being on when the key isnt even in the ignition. Please let me know if you guys can think of anything.

 

Hello ladies and gentlemen, this is my cherry popping post on performance trucks after lurking for years..

Anyway, I followed this post loosely in integrating a Terminator xmax into a 03 Cateye that I'm building for a "customer". I don't know if I'm missing the obvious or what, but I don't believe that the stock ECU is cycling on with the ignition. I can't get an OBD2 reader to even power off of the port. Any ideas where I should look first?

 

Get a wiring diagram and figure out where power should be coming from.

 

The Cigarette lighter fuse also powers the OBD2 port

 

Did you need a tps signal to the stock ecu in order for your ac to work?