I think they may be linked. Last time I dealt with a weird commanded AFR problem, O2s fixed it. I am going to go pick up a new pair of 2008 sensors here in a few minutes...almost $300, but if it fixes it, so be it. If not, my wallet isn't any lighter.

 

Sheesh, where are you getting those from?

 

Oriellys, their list price is like $130 each. Probably get them a little cheaper on the business account.

 

They go for about half that on rockauto

 

Didn't turn out to be O2 sensors, so no money lost there. I think I may snag a BCM and see if I can't fix something with that lol... At the very least, it should provide the proper signal to the FPCM so I get full fueling functionality back.

 

Thats ***** i was really pullin for the o2's

 

So if you put the truck in full open loop and disable the 02 sensor. The truck still wount start?

 

you say its rich and wont run or even start???? can you have some one try and start it while you listen at the injector's to see if there clicking??? I wonder if there cycleing properly or stuck???

 

It commands rich. When I can get my hands on a noid light I will verify the injectors are working properly or not. I can smell the fuel, though...

 

My thought was that it wasnt getting fuel and that it was trying to compensate.