A hotter thermostat won't set that code, a bad thermostat will though.....
IAC is the one that concerns me. I know they are expensive, but, I would suggest getting real mopar IAC....

 

The IAT is a real Mopar sensor

 

I can only go by what you post. I saw this:

Idle Air Control Valve: Carquest Premium

 

My apologies you're right...smh. I had intake air temp in my head for some reason. Ok! Thanks!

 

No worries.

I had zero success with aftermarket IAC valves..... My original was malfunctioning, so, replaced it with a parts store brand, and my problems got a bit better, but, stalling at stops was still an issue. Installed a spare Mopar valve I had layin' about, and the problems went away. Be sure to reset the computer when you change it, so it can learn the new part.

 

First, thank you for all of the help you've already given. It's been re-energizing. What should I look for moving forward from here in reference to new parts?

 

I usually go to some Dodge site, get the Mopar part number, then search on that. You can find OEM parts for less than what the dealer charges, but, still is an OEM part.

 

I swear if I didn't know any better I'd have to say my truck is a pissed off female. New OEM parts, won't fully crank over. A friend of my brother is supposedly good under the hood & tbh all I did was let him put the tps sensor back on throttle body. 2 screws, one way to go on figured fine. Apparently there's 2 ways it can go on AND it's the only thing I've ever put my hands on that fits backwards and correctly. So I reattach it, new battery maybe 3 weeks old...good voltage ****ty amps. I bought a load tester I'll put on after finished charging. Look really I think at this point all I can ask is what i should expect next. I can't test new parts if the soon to be IED doesn't turn over and start. Turns and like Nemo just keeps turnin

 

I swear if I didn't know any better I'd have to say my truck is a pissed off female. New OEM parts, won't fully crank over. A friend of my brother is supposedly good under the hood & tbh all I did was let him put the tps sensor back on throttle body. 2 screws, one way to go on figured fine. Apparently there's 2 ways it can go on AND it's the only thing I've ever put my hands on that fits backwards and correctly. So I reattach it, new battery maybe 3 weeks old...good voltage ****ty amps. I bought a load tester I'll put on after finished charging. Look really I think at this point all I can ask is what i should expect next. I can't test new parts if the soon to be IED doesn't turn over and start. Turns and like Nemo just keeps turnin

 

No one will ever convince me that vehicles are merely inanimate objects.... My trucks most certainly have an attitude....