So, could the ABS/Stabilatrack thing be confusing the computer enough to keep correct codes from being stored to read?

 

I don't think so as the issue was happening with the ABS and stabilitrack includ8ng the dash lights when it threw the codes for the cam and crank sensors.

 

ABS, airbag, immo or any other secondary systems would not cause the vehicle to stall out.
Replacing the BCM the second time won't help most likely.

Does it only happen while driving? Will the van stall if it was left idling for some time? What if you rev the engine in park?
Driving with the fuel pressure gauge hooked up isn't a bad idea. There's a fuel pressure regulator built into the fuel pump assembly inside the tank, it fails rarely though. Due to the fact that your van runs fine periodically, I think it is quite unlikely to be the culprit, but I would check nonetheless.

At this point, I am almost sure there is an intermittent electrical connection somewhere, that is affected by heat and vibration. I would start at the underhood fusebox, although it is a royal pain to even remove the cover, not mentioning working on it. I would take that whole fuseblock out of the van and inspect all pins and fuse sockets. At the bottom of the fusebox, there are 3 (or 4?) large rectangular electrical sockets with female pins. I would use a thin pick tool to try to bend each pin to make the opening just a tad smaller, for better grip. I say do this on each, since we don't know which one is bad, and if that would help.
(This advice comes from my experience on another GM product, a 2013 Sonic car, I had a condition of 3 trouble codes. Looking at the diagrams revealed those affected components were all powered by the same wire, and by wobbling the wire with my multimeter connected I was able to locate an intermittent condition. Bending the female pin solved it, over 2 years ago no problems since).

 

How about the ignition key cylinder? Getting loose and not making contact.

 

If your losing that kind of money, why not take to someone and get it back on the road..

Hope you get it fixed

Kenny

 

Try the evap canister and or the evap canister vent solenoid. I think that would also stop the gas flow to the engine.

 

hey for ****s and giggles of it, try unplugging the abs module for a while, since everything is on can buss now a simple can failure in one module can roll over or shut down another module. ive seen on a 2012 suburban where the abs module was shutting down the pcm randomly, also throwing the car in 4x4 mode at high way speeds

 

Please keep us posted I know some times people fix their issue and never
come back to report what was done to fix the problem.
I do agree with STAN if your dont get the issue resolved purchase
an ELM327....and Torque Plus
it would make for a great tool aiding in the diagnosis .
You can watch real time data ..
Seems as though you have a real issue on your hands.. to bad you probably
have spent alot a money already trying to get it resolved.
Let us know what you find out.
I sure it will help others in the future