Nissan UD help
 

i know it not a big rig or semi but we dont have a medium duty forum anywho i got a 96 ud 1800 tow truck and it seems to have a slight miss or hesitation above idle after its warm, i tried the fuel filter and that didnt seem to help anyone have any ideas of where to go from there?

Should find a way to check codes, or check one of the temp related sensors.