thanks for the quick responces......i have changed my fuel filter at least 6 times....i flipped the lever on the filter housing to inspect the fuel, it looked clean.. i spilled a little on the concrete drive and the next morning it had formed a waxy substance ...that is why i figured the injectors were clogged...i drained my tank, let the engine run completly out of fuel, added antigel, dieselclean brand, and an additive called heat it came in a yellow container, don't remember if it said 911, changed fuel filter put in ten gallons of fuel...ran it for awhile it cleared all codes except for 4 and 5 on injectors and p2146....the next morning it ran bad again and more injector codes codes came back...my block heater is plugged in...thanks for the suggestions and advice....randy

 

If you haven't already, I'd save that first fuel filter, and some of the original fuel.

You might also contact the station and ask if other folks reported problems after fueling there...