code po642 sensor reference voltage a circuit what does it mean

 

Hi I have a feu codes maybe you can help me with U1041 P0093 P0621
I have a stock 01 Dmax

 

i have a 2007 classic GMC. i tried a ppe tune on my truck and i get a check engine light with the 2610 code. as long as i leave stock it does not come on. i need the tuner for tire size and milage. any suggestions.

 

I am having problems with my 08 Duramax. I had two codes come up yester day (P0700 & P0777).The truck has been modified with an edge EVO Race version and the factory exhaust has been removed. Can any one give me advise on what I need to do to solve this problem and prevent any damage to the tranney.

Read more: https://www.dieselbombers.com/chevy-...#ixzz0S6KTe0Bj

 

Sorry I don't know anything about the Duramax codes to be able to help there but I wanted to make sure everybody knows where to find the trouble codes for any vehicle.

Just go to the site home page here and at the top left hand side you will see where it says "BOMB SITE" with a drop down arrow.

Just click on that arrow.

Go down to ODB Codes at the bottom of the list and click on it then type your code in and it will bring it up.

 

2610

 

p0045

p2610

u101

u106

p i think 090

u101 showed up about four times...

 

Type them in here and it will tell you what the codes are. https://www.dieselbombers.com/codes.php

 

Duramax it says something about turbo code not learned

 

2006 GMC K2500 HD, 4x4, CC, short bed, LBZ 6.6L Duramax Turbo Diesel, Allison 6sp
I am totally new here, so I'd appreciate any help I can get. Owned the truck for 2 yrs, and do most of my own work on it. I am intermittently getting code P0622, as well as the red Battery icon on dash, and text: "battery not charging", but not all the time, only abt 30 %.
I know P0622=Generator F-Terminal Circuit, but what do I do. Do I have to replace alternator, or is there another fix?