Could these codes mean it is a bad injector or something in the wiring. Please help as I have had issues in the past with another truck with bad injectors. I had them all replaced. Thank You

P/0202 Inj. #2 Control C and P2146 Bank 1 (Cyl 1-3) Shorted High or Low.

 

That is a wiring issue. There is the wire harness under the valve cover that connects to the top of the injectors. The wires (as the fault indicates) are divided into the front 3/rear 3 injectors.

You may have to replace that wiring harness.

 

genos garage carries the valve cover harness.

 

the 06 has more problems with the solenoids than the wiring harness, pull the plug on the first three injectors and check the ohm's on each one, i think you will find over one ohm on the center two pins where where the first and last two have about 0.7 ohms. you can change the solenoid out in about 5 minutes without removing the injector, if you kept the old injectors use one off of them if not then you can get a new one off of ebay or amazon the wire nuts are 8mm the solenoid ring is 1 1/8" deep 12 point