sean byrd

Engine is a '99 5.3.
I've decided to go DBW.
I have a harness and two pcms: (1st) serv no. 09354896
Hdw no. 16220610


(2nd) serv no. 12586242
Hdw no. 12583660


From what I've read the (1st) should work with DBW only. Do I have to use a certain tac module and pedal?

MontecarloDrag

iTrader: (3)

Well, both can do the job but you need to flash them with the correct OS and match wiring to it.
Which harness do you have?
Easiest route would be the second PCM with a truck harness, metal pedal with TAC from 03-05 truck will work with that PCM.

Wiring can be modified to suit your needs, so at his point you can do anything you want.

sean byrd

My harness came with the 2nd pcm but I bought it from a mutual friend although I'm pretty sure its from a truck of some sort.

MontecarloDrag

iTrader: (3)

If it came with the 2nd PCM then it should be Green/Blue connectors and have DBW wiring already. This is your best option since 03-05 pedal/TAC is cheap and easy to find.

sean byrd

I'll double check the colors after work today. Already have the DBW throttle body as well.


-thanks