I got an 03 2500 6 speed this summer and it's getting colder changed the fuel filter about a month ago but now it seems to be starting hard and now seems to be lacking power it has 315 km on it am I do for injectors or possible lift pump issues I'm pretty sure it's a fuel concern cause the intake heater is working and turns over plenty fast any opinions?

 

A while back the cel was on for a p0073 and it started to have a miss after 2000 rpm lack of fuel would be my guess?

 

I just checked for codes has p0073, 0107, 0234, 0483 and 0642 the fan speed may have something to do with just putting the plow on last night but I took the thing for a drive and would hardly haul itself when trying to rev it up didn't act right where do I begin

 

did you replace fuel filter? check air filter box? start simple

 

I just changed it a month ago