My 2011 Chevy 2500hd all of a sudden has 3 fuel injector codes p0266 p0278 p0281 after I changed the engine coolant thermostats and temperature sensor anyone else ever had this happen? Or know how to fix it?
My 2011 chevy 2500hd of a sudden has 3 fuel injector codes p0266 p0278 p0281 after I changed the engine coolant thermostats and temperature sensor anyone else ever had this happen? Or know how to fix it?
Check the wiring, did you have to move any when changing t stats or did you lean on any or drop any tools there? Are these the ones closest to front of engine, and did you mess with any grounds?
I didn't move any wiring didn't lean on or drop tools didn't mess with grounds and not all at the front did not even have a check engine light on but checked anyway and showed codes for cylinders 2,6,7 contribution balance faults. Only thing related to the fuel injection that was moved was the regulated fuel return line on top of the thermostat housing just moved not unhooked or anything else.
