LB7: Help Please LB7 running rough after injectors
- Thread starter laser45v
- Start date
Whose injectors? Without a scanner at hand I would say you're probably not going to be able to do much. Check engine light on I take it?
Watched a video on YouTube and of course its in spanish! Won't let me paste URL. Just youtube search duramax injector harness problem. Should be first one with pic of scan tool. I can't find this plug that the guy shows he replaced. Is it because truck may be an LLY? Thanks guys so far.
You need to recheck your connectors at the top of each valve cover. Pull them back apart and make sure they are clean, dry & connected properly. Any other wiring you may have unhooked as well. If you still have an issue you need to check each injector wire going to the top of each injector...
Ice pick is LLY stuff... Did you ck the connectors you unhooked doing the injectors?
Sounds like a problem my buddy had after we did his lb7 injectors. Come to find out one of the connectors on the top op the injector got bent up and was making contact with the valve cover. We figured out what injector it was by checking resistances in the connectors on the outside of the valve cover where they plug into the harness. Cant exactly remember how we did it but sounds like you have the exact same problem he did.
No, he is reading possible issues and picking up on LLY repairs... At least that's how I read it.
Kinda what I figured but at least need to be sure we can help him correctly.
Definitely sounds like its not firing on all 8 or intermittent missfire.
Definitely sounds like its not firing on all 8 or intermittent missfire.
That is what I thought which is why I asked him to recheck those connections but he seems hell bent on LLY fixes
Fill out your signature so we know what you're working with. I believe all but the '01 model years have a safety limiter to 2000 rpm in park. Shift it to neutral and see if it revs higher.