Idling issues and APPS 1&2 faults

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Eric Hodges

Junior Member
Joined
Dec 17, 2025
Posts
3
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Location
Tuscaloosa, Al
Ram Year
2003-2004
Engine
5.7 hemi
2004 1500 automatic 5.7- I needed to do some repairs on the engine. So i pulled the engine, well before i state the repairs made let me say that the truck was running perfectly fine. It had a cylinder that was getting coolant in it. So i pulled the engine and replaced both head gaskets, rear and front main, and upgraded the exhaust manifold. Installed the engine everything went smooth, but i now the engine will not idle. I can start it by feathering the throttle, but as soon as you let off the throttle it'll try run for a second then stall. these are the faults that are present. I think i may have left off an important ground strap somewhere. If someone knows what could be going on, or if someone has had this issue in the past and you were able to fix it somehow, I would really appreciate the info. Thanks for in infoIMG_2599.PNG
 

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