I got the same code PO273 and now the truck won't start . It trys to start but wont. Tried everything i know. I;m new to the 6.0 's . was wondering if anybody found anything out. was told it was a cps wasn't it. same problem. Got this code a few weeks ago and the last few days it started hard blown black smoke and then ran fine the rest of the day . Then yesterday won't start and now can't get it to the dealer to get it checked out. Anyone have an idea whats could be wrong ?:crazy:I have a rough idle.Found #5 circuit low.
If while running rough i move the wires going to the injector plu it clears up
Ill be removing the tape and checking the wires tomorrow.