I have a cat th417c , newer model with all the computers and stuff. this morning it was super cold. It started with no problem, but shutoff after 4-5 min. started again. shutoff again. repeated this 3-4 times, and now it won't even try to start. it's like it is in cripple mode and there is a fail safe preventing it. I managed to get the screen into help mode and saw the engine log said "5826-15" , which i looked up to be Fuel Rail pressure was low. I put a blow drier on it. Changed the fuel filters. Primed the fuel. still the same. any ideas?
Unplug the rail pressure sensor