Results 1 to 10 of 12

Thread: light throttle surge.

Threaded View

Previous Post Previous Post   Next Post Next Post
  1. #1
    New Member
    Join Date
    Jun 2011
    Posts
    4

    Default light throttle surge.

    I am trying to get rid of some surging / bucking that occurs at light throttle between 1000 and about 1800 rpm, if you apply more throttle or back off completely it goes away.

    It happens when the engine is hot or cold, I've looked around at suggestions, such as too much air flow or too little, playing with timing, but as I'm new to tuning I don't know much about what I'm doing and I can't seem to work it out, nothing seems to change it.

    Could anyone check out my tune and see if you could offer any tips or guidance.

    It would be much appreciated, thanks.

    Specs are:

    year 2005
    Ls1 5.7
    ported stock heads
    4>1 long tube headers
    2.5 dual exhaust with high flow cats
    ORCAI
    3.9 gears
    M6
    230/230 110 comp cam
    electronic throttle stock.
    no MAF.
    Attached Files Attached Files

Similar Threads

  1. Service brake system w/ABS light and Parking Light on
    By mshirshe in forum Duramax 06 LLY / 06+ LBZ & LMM
    Replies: 3
    Last Post: March 13th, 2010, 03:32 AM
  2. Stock 4L65E sluggish 1-2 shift at light throttle - Dashboard attached
    By pacer265 in forum 4speed RWD/FWD Transmission Tuning (incl T42)
    Replies: 0
    Last Post: July 12th, 2008, 06:25 PM
  3. 8.1L Throttle Surge
    By MoTruck in forum General (Petrol, Gas, Ethanol)
    Replies: 2
    Last Post: November 26th, 2006, 03:30 AM
  4. LTFT desired values for idle, light throttle, WOT
    By 2000ssnb in forum General (Petrol, Gas, Ethanol)
    Replies: 3
    Last Post: January 18th, 2006, 12:55 PM
  5. Light Throttle Knock Retard
    By jamesbond2509 in forum General (Petrol, Gas, Ethanol)
    Replies: 4
    Last Post: October 4th, 2005, 06:37 AM

Posting Permissions

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