Can you tell us the Year, Make, and Model of your vehicle, along with the engine size?
If you have the VIN handy, that would be good.
I am going to have to open the question for another expert to help you, as I have lost access to my information database. I hope that someone will be along shortly to help you.
Thanks for your patience.
I HAVE A 2005 GMC 2500HD WITH A 6.6 DURAMAX VIN 1GTHC23205F922193
WITH 2 FAULT CODES.
P0202 INJECTOR 2CONTROL CIRCUIT
P2149 INJECTOR POSITIVE VOLTAGE CONTROL CIRCUIT GROUP2
WHAT IS WRONG?
I CAN CLEAR THE CODES WITH MY HYPERTECH 3 BUT THE CODES CAME BACK
SO I THEN CLEARED THE CODES AGIN AND SET THE SETTING BACK TO FACTORY SO FAR OK WILL THAT HELP?
I got access back to the system and have a TSB (Technical Service Bulletin) for you. Depending on your mileage, you may be able to get this repaired under warranty. I would check with a dealer and see what you can work out, especially if you have it serviced there on a regular basis.
Sorry about the size of the files (below), but this is a big on. The images are in the same order as they occur in the text (the first file).
Please let me know how it works out.
Take Care, Greg A.