I have a 2005 Ram 3500 with a PO338 error code. I have replaced crank sensor and can't seem to clear that code. Anyone have this problem before? or what may need to be done to correct problem as I may have not fixed the problem. I am not sure what to do next. Thanks!

 

I had this problem and chased the wiring under the oilfilter were it can rub. This was bad but didnt help my code. What I had going on was my bolts in my harmonic balancer were coming out and throwing everything off. Once I got this all fixed the truck has been running great. Hope this helps

 

05... First, I'd load check the batteries.

Then...

Possible causes:
(K6) 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
INTERMITTENT CONDITION
ECM