Page 3 of 3 FirstFirst 123
Results 41 to 50 of 50

Thread: Glowing headers. Timing off?

  1. #41
    Tuner MakesBadDecisions's Avatar
    Join Date
    Oct 2017
    Location
    Montucky
    Posts
    194
    How is your speedo in the rig hooked up. I want to make sure the ecm speed is matching the actual. In the log you cruised for a couple minutes at 42 mph. You think that is close?

  2. #42
    Tuner in Training
    Join Date
    Nov 2018
    Posts
    49
    exhaust is a raspy with Magna flow right with shift change. Maybe just the Magnaflow i have... Sounds good otherwise

  3. #43
    Tuner in Training
    Join Date
    Nov 2018
    Posts
    49
    ya its close i checked it with GPS .. i have a bluetooth OBD 2right now running KIWI OBD app... No jeep gauges

  4. #44
    Tuner MakesBadDecisions's Avatar
    Join Date
    Oct 2017
    Location
    Montucky
    Posts
    194
    The rasp comes from the torque management. We can tone it down and speed it up a touch once we get everything else dialed.

    Not a fast process but in the end you should learn a few things.

    Working on revised tune, need to get a few more things lined out.

  5. #45
    Tuner MakesBadDecisions's Avatar
    Join Date
    Oct 2017
    Location
    Montucky
    Posts
    194
    Like within 1 or 2 or like 4 or 5 mph off

  6. #46
    Tuner MakesBadDecisions's Avatar
    Join Date
    Oct 2017
    Location
    Montucky
    Posts
    194
    Here is revised tune. Based on trims i pulled some fuel from the MAF. I also added some timing back in for the cruise area. I also changed some EOI stuff, should help with fuel smell at idle, which i assume it does. Changed some BRAF stuff as idle needs less air and a touch less spark intervention, this might smooth out the idle a bit. If it seems worse tell me.



    I did not change anything in the trans so you can just "calibration flash" the ecm and "do not write" the TCM

  7. #47
    Tuner in Training
    Join Date
    Nov 2018
    Posts
    49
    idle was good.. still a little fuel smell but not bad
    Attached Files Attached Files

  8. #48
    Tuner in Training
    Join Date
    Nov 2018
    Posts
    49
    maybe a little jumpy between PRND

  9. #49
    Tuner MakesBadDecisions's Avatar
    Join Date
    Oct 2017
    Location
    Montucky
    Posts
    194
    Sweet. There is only so much we will be able to get out.
    Anything feel different? Good or Bad?

  10. #50
    Tuner in Training
    Join Date
    Nov 2018
    Posts
    49
    Seems good nothing bad,, i didnt really get on it much but it seems to be changing at a better RPM now and IDLE is smooth