How to tune/program 1999 Vortec 7.4 for truck config or WHO does it?

[blazindorito]

Thanks for any help.

I need to reprogram my own computer with upgrades that I have done to the truck.

Tire size, differentials, tranny O2 sensora, etc...

Let me know fellas!

 

[Stomis]

First theres nothing to program on our generations truck. You cant use a piggy back or a plug in tuner like a newer truck.

The only way to alter a TBI trucks computer is to learn the ins and outs of datalogging, interpreting data, buying a tuner program and burning new PROM chips.

check out thirdgen.org They have a very extensive section on PROM burning and tuning a TBI computer.

PS: Trans and tire size has NO say in anything the computer does.

 

[blazindorito]

Thanks I was in a hurry and should have read what I wrote.

I am swapping a 7.4 vortec with everything from a 1999 suburban.

I need to tune it to match my vehicle make it off road friendly.

Thanks

 

[Thunder]

These guys will reflash your eCM with a custon tune. They also have software/cables for your laptop you can buy/rent that can reflash your ECM without sending it in. You send them the info on how you want your programing.
They Email you the custom programing files. You do the rest.
http://www.pcmperformance.com/programming.html