Search results

Search the forum Search Articles
  1. garyrosa123

    Problems attempting injector cleaning

    In my case unavailable parts made it difficult to resolve. Ordering extra sensors to have on hand. I have a few OBD2 readers to clear codes etc. and looking to purchase reader/writer for the future.
  2. garyrosa123

    Problems attempting injector cleaning

    Follow-up.. Truck spent two days in the shop and is now purring as it should. I have yet to clean injectors, however thought I would update. I replaced NOX position 1 and 2 once I found OEM of each. Shop flashed ecm, and informed me there was a huge list of updates my ecm had never received...
  3. garyrosa123

    Problems attempting injector cleaning

    Well, Shop scheduled an appointment for next week. Said they have another truck, 2018 as well, awaiting NOX sensor on natl. back order. I'm thinking go with aftermarket and have one in hand when I take the truck in for appointment. Any suggestions on aftermarket for oem #s NOX 12680215...
  4. garyrosa123

    Problems attempting injector cleaning

    Upstream is on national backorder, and I have a downstream coming one day next week, needed or not. I've been reading, and DEF injector can also be related to NOX. Hopefully local shop can shine light.
  5. garyrosa123

    Problems attempting injector cleaning

    Thank you for the reply. The info you sent will definitely be useful in tracking down the source. I tried to disable the pump to do the cleaning, and it just kept running. Didn't get to perform cleaning. Yesterday the CEL came back on, and NOX codes are haunting now. New fuel filter, new stock...
  6. garyrosa123

    Problems attempting injector cleaning

    No suggestions, or replies. Admin, Please delete this thread named "Problems after injector cleaning" Dealing with Nox sensors. etc which are now popping up. Leaning far away from L5P as parts are not available. Thank you, Gary
  7. garyrosa123

    Problems attempting injector cleaning

    Hello fellow members, and thank you for providing such an informative forum. I have a 2018 Silverado 3500LTZ 6.6 Duramax L5P, and attempted a fuel injector cleaning today. Removed every fuse and relay labeled fuel, and could not get the lift pump to stop pumping fuel, and the engine never...
Top Bottom