I need a little help with this one.

I have had one trouble code pop up on my 2006 2500 diesel auto and the engine light comes on (plus the truck makes a little racket when it happens). It has happen twice, both while pulling out into a main road (empty, not towing). I have an Edge Juice with Attitude (only engine mod.).

Trouble Code P2146
Bank 1 (cylinders 1-3)
Shorted high or low

I've been running around on level 3 and the low boost at 3 and usually with the tow mode on to get the converter to lock over quicker (both times I was in tow mode with the tranny).

Any help would be appreciated. I'm tring to figure out if I need to pull everything off and take it to the dealership.

Thanks,
Jason

 

P2146-bank 1 (cylinders 1-3)
Shorted High Or Low. . .

 

Do the 06's have the 3 plugs next to the fuel rail? I just had the same problem on my '03 and it was the plug coming loose and messing w/ those two cylinders... just a thought.