Results 1 to 6 of 6

Thread: limp mode with aftermarket turbo

  1. #1
    Advanced Tuner
    Join Date
    Jan 2009
    Location
    Mead, WA
    Posts
    474

    limp mode with aftermarket turbo

    I have a swapped Duramax with a limp mode issue. Aftermarket turbo. Tried deleting all of the vane codes and still no luck. If I hold my foot to the floor and delete codes at the same time, it will rev, but then fall back to 2k...

    Any thoughts? Thanks guys!

  2. #2
    Tuner in Training
    Join Date
    Nov 2017
    Posts
    13
    What's the codes? MAF will derate you also.

  3. #3
    Advanced Tuner
    Join Date
    Jan 2009
    Location
    Mead, WA
    Posts
    474
    Quote Originally Posted by jbauto View Post
    What's the codes? MAF will derate you also.
    Obviously the engine is far from stock so i've deleted things like EGR and etc and no codes show up. I go through and enable every code and other than the EGR codes, there is only one code that might cause the issue - p0045 i think it is. IIRC it has to do with the vanes in the stock turbo.

    I tried with the MAF unplugged, because logging and revving I felt it is probably bad - just wasn't seeing the readings I think there should be. Did not help.

    ...It might not even be limp mode. I'm at a loss at what might be causing it.

  4. #4
    Tuner in Training
    Join Date
    Nov 2017
    Posts
    13
    If you want to upload your tune I'll have a look and see if I spot anything abnormal.

  5. #5
    Advanced Tuner
    Join Date
    Jan 2009
    Location
    Mead, WA
    Posts
    474
    dmax tune.hpt
    i think i did it right?

  6. #6
    Tuner in Training
    Join Date
    Nov 2017
    Posts
    13
    Pop this in and see if it changes anything. PM me if it doesn't and I'll try to help more.

    dmax tune(test).hpt