Has anyone seen this one?

[ACoyle]

On cold days (10 degrees this AM) or cold windy days only. I will be cruising at highway speeds and the truck will take off like I floored it, which I have not. A few seconds later the check engine light comes on and it goes into limp mode.



The codes are P2121 and / or P2123. Reset the codes and good to go. I am thinking APPS. I was just wondering if anyone else had seen this type of thing.



Thank You in advance



Andy

 

[jgillott]

Not sure if it is the same symptoms, but whe the APPS was going bad in the '04. 5, it started acting like the throttle was an on/off switch. Either full throttle or none at all.

 

[GaryOwen]

Had the same symptoms on my 03 (three times). Bought two APPS's from Dodge at outrageous prices before Timbo came up with a better solution. Got the Timbo APPS and no more problems.