hodge9386

iTrader: (3)

Is there a way to hook a wideband to the pcm and create a custom pid in HPT to read afr's in a 02 silverado pcm? I know it can be done on F-bodys because i did it on my firebird and it worked great. On f-bodys you just put the ac pressure switch on a on-off-on switch and when i want to tune i switch it to read the wideband signal through the pcm and have a custom pid set up to use the 5v ref to read my afr's. I know that is comfusing so here is the link to set it up (https://ls1tech.com/forums/pcm-diagn...eio-print.html). is there any way to do the same thing to a 02 silverado pcm? i guess i just need to know what sensor used a 5v ref and i can set up the pid.

03sierraslt

iTrader: (22)

Do you have HPT MPVI Std or PRO?

hodge9386

iTrader: (3)

its standard. if i had pro i could just plug the wideband wire in to the eio.

hodge9386

iTrader: (3)

i basically just need to know if there is a 5v referenced sensor that isnt a major sensor the pcm uses to make the truck run correctly like a ac pressure or something like that i can tap in to. i can prolly fiddle around use the pid for my firebird to make a pid for the truck using the correct sensor.

Vortec350ss

iTrader: (20)

There are ways to do it like you said wiring in one of the signal wires to the PCM... I didnt want to go through that hassle or mess with PCM wiring any more than I had to. I upgraded to pro.

hodge9386

iTrader: (3)

yea i dont really want to spend another $250 to send mine in to get upgraded. its not really that hard and once its set up its just a flip of a switch, its kinda nice actually.

Steve-O-08

iTrader: (5)

You could use the egr wiring. You can disable the egr in the tune and use the wiring harness for it. Basically the same way you used the a/c pressure switch with a custom pid.