I have a 2004 Dodge Ram 1500 Quad 5.7L and when i start my truck it hardly idles.If I give it gas it will die. I have a "Superchips" flash paq programmer and I have 3 dtc's Air Charge Temp sensor, Engine Coolant Temp Sensor High, and MAP Sensor High. I have cheched the air charge with my ohm meter and is fine. I have replaced the engine coolant temp sensor, and bought 2 map sensors and replaced. I also checked for vacuum leaks electrical connections and can't figure out what is wrong. I also noticed that my electric cooling fan is always on, and my a/c compressor will not turn on. Has any one have this problem or if anyone coud point me in the right direction I would greatly apreciate it.

 

Have you tried going back to the factory tune?

 

Id try removing the SC and pull the battery for 30 min and allow the computer to reset and see where you are at from that point. From what ive read before leave the lights on to drain all residual power from the system. Just turn off the switch before hooking the battery back up.

 

I have had the programmer set for almost 2 years, I doubt resetting would change any thing, but I guess at this point it's worth a try.

Thanks

 

I tried both suggestions you guys posted. Still have the same problem. Do you or anyone else have any other recomendations?

Thanks for the help!

 

whatever module it is that those sensors feed info to sounds like its bad, that might be something to check
or
take it into the dealer and pay for a diagnosis, usually 1hr runs about $65.

 

have u cleaned your tb? try cleaning it the reset the pcm(do a search). no a/c maybe a tps reporting a wot condition, and chopping power to the a/c compressor. if that doesnt help, im gonna make a leap and say its not throwing any codes,(u did check right?). i know your probably dont wanna hear this but if you have all the parts to return to stock try that, then add parts one at a time until it fails again. you've tweaked several systems in the pursuit of more power and now one of them isnt playin nicely.

 

Hey, I just went through this hell a few months ago. Check out my thread on it. I really got a lot of help from the Forum guys! Thanks to everyone who replied! Still don't believe it was really the 'few' O2 sensors they said it was, but it hasn't done it again.

"The Throttle/Idle Nightmare! Help please!" https://dodgeforum.com/forum/3rd-gen...lp-please.html

Good luck with this!

 

Definitely check the Throttle Position Sensor. Mine did the exact same thing that you're describing. When I changed that, all problems ceased.