My truck fell flat on its face today, I "Limped" home and retrieved these codes with my predator,
Po202 Injector circuit malfunction cylinder #2
Po203 " " " " #3
Po205 " " " " #5
Po208 " " " " #8
Po522
P2149
nd064
Is this something I can fix myself, Or should I take it to the dealer?
Thanks in advance,
John

 

They all seem to be circuits/sensors Low Voltage ect

Did you jump some one recently or weld on the truck ?

Maybe ECM/PCM Malfunction

Reset codes and disconnect batteries for a hour then reconnect and start it up and see if it throws codes

DM

 

p0522 is power steering pressure sensor circuit low input
p2149 injector positive voltage control circuit group 2 (GM)


sounds perty drastic to me..... what year is the truck? is it under warranty?

 

there are 2 wiring harnesses, one going to each bank of cylinders, check them for fraying, cuts or abrasions, typical duramax problem.

 

Thanks guys, I did a search on another forum, Aparrently there is a problem with the wiring harness on these trucks. I will take it to the dealer tomorrow.

 

John, I will call you in a few minutes. I've been teaching a class and just got done thats why I couldnt answer the phone. There are far more than two harnesses on the DMax for each bank. I'll call in a minute and help you through it.

 

Thanks Tracy!

 

John, something else I thought of...go through 10 key cycles and see what codes clear.

 

Thats only on the #2 and #7 injector harness. You can fix the #2 harness easily on the side of the road in about 10 minutes. The #7 is a to get to.

 

did ya'll get this figured out? what was the fix?