Derwin Yamamoto

truck was loping and had a fca code changed with a rock auto sensor but still had the problem.had a scanner hooked up and found out #5 injector was out.put in a BD reman injector and got better but still has a slight lope and the code is still there.is it possible the sensor is bad.thanks

Danderson

Try putting a quart of Supertec synthetic 2-stroke from Walmart. Mine had the same symptom and the stuff cured it in a few miles.

Derwin Yamamoto

thanks will try later today