Results 1 to 1 of 1

Thread: E38 Idle Fine Tuning

  1. #1
    Junior Member PHLTHS's Avatar
    Join Date
    Dec 2014
    Posts
    21

    Default E38 Idle Fine Tuning

    Hi All

    I'm having some issues fine tuning my idle.

    Currently facing the two following issues:
    1: When shifting from Drive / Reverse into Neutral or Park the engine will hunt and eventually stall. However in Drive / Reverse or Park (after starting the car) the idle is rock solid. If I try and blip the throttle a little to catch it as I reverse out of a driveway and put it into gear its ok.

    2: When taking off from a stand still or just as I come off a speed bump there is some very light throttle surging which I'm not sure which tables to adjust?

    Engine is a LS3 with a 228˚ / 238˚ @113˚, 3000 Stall / 6L80.

    I've tried adjusting the following tables from stock but they are having no affect.
    B1829 Minimum Idle Airflow (I'm pretty sure this table is now dialed in)
    B1845 Idle Proportional Step Size (To be less aggressive)
    B1843 Idle Integral Step Size (To be less aggressive)


    I've attached the tune & log. Any help would be greatly appreciated.


    Thank you.
    Attached Files Attached Files
    HSV W427 / HSV SportsCat SV

Similar Threads

  1. E38 idle tuning
    By hymey in forum E37, E38 & E67 PFI ECM's
    Replies: 356
    Last Post: November 2nd, 2022, 10:04 AM
  2. Replies: 15
    Last Post: January 19th, 2016, 08:33 AM
  3. trying to do a little fine tuning with no wideband
    By loganlewis in forum Gen III V8 Specific
    Replies: 11
    Last Post: October 25th, 2012, 08:04 AM
  4. Rich trims at idle but cruise is fine 1997 corvette
    By mvvette97 in forum Gen III V8 Specific
    Replies: 9
    Last Post: November 10th, 2010, 03:52 AM
  5. Fine tuning AFR in PE
    By 12sec.5.3 in forum General (Petrol, Gas, Ethanol)
    Replies: 28
    Last Post: October 25th, 2006, 02:08 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •