Results 1 to 3 of 3

Thread: New cold start issue

  1. 11-06-2021 #1
    chipflyer
    chipflyer is offline
    Tuner in Training
    Join Date
    Aug 2020
    Location
    Topeka Ks
    Posts
    25

    New cold start issue

    What is weird is that I have not changed anything and 2 weeks ago this was never a thing, it has always started, idled and warmed up nicely.
    Can someone take a look at the log and give me an idea as to what the heck has happened? You can see that right before I stopped logging it started idling nice and running good and I never touched the throttle. Adding the log and tune file.
    Thanks

    Jeff
    Attached Files Attached Files
    Last edited by chipflyer; 11-06-2021 at 10:03 AM.
    Reply With Quote Reply With Quote
  2. 11-06-2021 #2
    chipflyer
    chipflyer is offline
    Tuner in Training
    Join Date
    Aug 2020
    Location
    Topeka Ks
    Posts
    25
    I guess I should add its a 2013 gen4 5.3L LMG.
    Reply With Quote Reply With Quote
  3. 11-07-2021 #3
    kevin87turbot
    kevin87turbot is offline
    Senior Tuner
    Join Date
    Mar 2011
    Location
    Ripley, MS
    Posts
    1,865
    It has a misfire DTC for cyl 8. The fuel trims look very bad as well. Take a look at the misfire first. Hopefully, it's just a plug wire or plug.
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »