Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: New to Efi Live

  1. #1
    New Member
    Join Date
    Nov 2016
    Posts
    6

    Default New to Efi Live

    hi guys i am new to efi live as the title states, i have a 78 camaro with a ls1 and a 4l60e tranny, the car has run great for 4 years now and has just started some surging issue while acceleration, i have logged a quick little run and was wondering if i post the tune and log if some one could look at and maybe pin point the issue for me. any help would be appreciated
    Attached Files Attached Files

  2. #2
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Looks like MAF is under-reporting.

    Were you running closed loop trimming...?

  3. #3
    New Member
    Join Date
    Nov 2016
    Posts
    6

    Default

    sorry joe i was away for a few days, but like i said i am new to this i bought efi live to log what was going with the car, the tune was done by some one else so i am not sure if it runs in close loop or not... i wish i could tell you more, i am reading and learning about it but is going to take awhile, how does the tune look by the way??thanks

  4. #4
    Junior Member
    Join Date
    May 2008
    Posts
    12

    Default

    if the car ran good for four years I wouldn't think it would be the tune. check for vacuum leaks behind the maf also you need to log some more pids also look for misfires

  5. #5
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    +1 on what GMTECH4 said.


    Your MAF sensor might be dirty (what air filter do you have...?)

  6. #6
    New Member
    Join Date
    Nov 2016
    Posts
    6

    Default

    what pids do you recommend i use , i just used what was set up in efi live, and i am using a spectra air filter, again thanks for the help and patience

  7. #7
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Quote Originally Posted by cvhu View Post
    what pids do you recommend i use , i just used what was set up in efi live, and i am using a spectra air filter, again thanks for the help and patience
    If this filter requires applying oil to the filter element, then this oil can contaminate the MAF sensor... you have to minimize oiling the element... and you have to clean the MAF sensor frequently.

  8. #8
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Log these pids:
    SAE.MAP
    SAE.MAF
    SAE.RPM
    SAE.TP
    SAE.LONGFT1
    SAE.LONGFT2
    GM.HO2S11
    GM.HO2S21
    GM.IBPW1
    GM.IBPW2
    GM.MAFFREQ
    GM.EQIVRATIO
    GM.MFTOTAL
    GM.KR
    SAE.SPARKADV
    SAE.IAT
    SAE.ECT
    CALC.CYLAIR
    CALC.INJDC1
    CALC.INJDC2


    remove SAE.O2S11, SAE.O2S21.

  9. #9
    New Member
    Join Date
    Nov 2016
    Posts
    6

    Default

    thanks joe i will try those pids, also i dont use oils on my filter

  10. #10
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Clean the MAF anyway (use CRC MAF cleaner) and see what it logs.

Page 1 of 2 12 LastLast

Similar Threads

  1. Replies: 16
    Last Post: June 14th, 2016, 03:24 AM
  2. Replies: 10
    Last Post: December 26th, 2011, 07:44 PM
  3. Is EFI Live right for me?
    By jon6.0 in forum General
    Replies: 25
    Last Post: May 21st, 2011, 09:18 AM
  4. Efi live class at efi university
    By Robbie The Wrench in forum General (Petrol, Gas, Ethanol)
    Replies: 0
    Last Post: September 1st, 2008, 01:25 PM
  5. new to efi live
    By ilov2xlr8 in forum Gen III V8 Specific
    Replies: 8
    Last Post: March 28th, 2008, 02:45 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
  •