Cummins 6.7 Injector Codes?

spoon059 wrote:
How many miles? Lots of people have 150-200K miles on stock injectors with the 6.7. Its possible to have 1 bad one, but 2? Unless you are up there in miles, I would suspect the injectors are fine or you just have bad luck. The fact that something happened to cause #4 injector to throw a code, but it didn't come back makes me think its not the injector, but something else.

I would start by making sure all your wiring harnesses are in good shape and securely fastened. I'm guessing that something is loose in the injector wiring harness that is causing a voltage drop somewhere that is causing the code. The wiring harness is the first place I would look.

At a bare minimum I would say you need further diagnosis. Good luck!

Thanks for the reply! I'll see if I can figure out how to look at the wiring harness...

It has 128k miles.

How many miles? Lots of people have 150-200K miles on stock injectors with the 6.7. Its possible to have 1 bad one, but 2? Unless you are up there in miles, I would suspect the injectors are fine or you just have bad luck. The fact that something happened to cause #4 injector to throw a code, but it didn't come back makes me think its not the injector, but something else.

I would start by making sure all your wiring harnesses are in good shape and securely fastened. I'm guessing that something is loose in the injector wiring harness that is causing a voltage drop somewhere that is causing the code. The wiring harness is the first place I would look.

At a bare minimum I would say you need further diagnosis. Good luck!