I'm not very good at searching forums, so I apologize if this is a repeat. While driving to work this morning, I got the traction control and stabilitrack messages on my dash. The truck seemed to be driving fine, so I didn't think too much of it. As I continued to drive, it started to run rough. I opted to exit the freeway, and on the offramp it went into low power mode. Just after the stop sign, the engine died. I pulled over, and after getting a tow truck on the way, I checked the codes. P0068, P0101, P0106, and P0300. After getting it home, I went to the auto parts store and picked up the MAP, MAF, and TPS sensors. Hoping to find the suspect sensor, I swapped them one at a time. I didn't have any success in getting it started. Can anyone help me fill in the gaps of knowledge that I have? Hoping to get this thing running again soon as I really need it for work.

 

Replacing parts is usually a waste of money if you don't know they're bad, as you found out.
A good place to start is obd-codes.com
You can find out what the codes mean, and there are steps how to diagnose the issue.
It's unlikely all those sensors went out at the same time. You should check for electrical issues. (damaged wires, wet connectors, bad grounds, etc...)

 

Thank you for the response. Pulling the codes was done via a Fix'd sensor, which also comes with an explanation of said codes. I did not just start swapping sensors. In fact, I swapped them one at a time to try to minimize cost. I checked for all the regular "damage" type culprits initially. All 4 codes point to those specific sensors that I bought. 2 of them were returned. The TPS is the only one I kept, and that's simply because it requires installation for proper operation.

 

but you still didn't find the issue.

I would have started by using a diagnostic tool to view the live data.

 

Please explain to me how to get live data from a vehicle that won't start.

 

Turn the key. Maf should be zero but everything else should work

 

Got live data. Everything seemed ok. The voltages on all of the sensors seemed a little low, so I had the battery tested. Passed all tests. Reinstalled fully charged battery. Started long enough for me to see it was charging @ 15 volts. Being this is the newest truck I've ever owned, 15 volts leads me to believe the regulator is bad, but would that cause the engine to refuse to run?

 

15V is normal, especially immediately after startup when it's trying to recharge the battery.

What do you get for idle MAF/MAP/TPS values?

 

I had to WOT in order to get it to start, and even then it ran like ****. The MAF was 4.6 lb/min, the MAP was 29.23 inHg, and the TPS was 83.92%. These are the peak values, as the moment I took my foot off the throttle, it died. Fuel pressure showed 62.22 psi as well.

 

well , at least we know the sensors seem to work at WOT.

I presume you cleared the codes. After you replaced the sensors, did the MIL come back on?