Results 1 to 8 of 8

Thread: E-85 / DOD Timing changes

  1. #1
    Senior Member Naf's Avatar
    Join Date
    Aug 2006
    Posts
    183

    Default E-85 / DOD Timing changes

    Hey all,

    I now have a 2010 Tahoe with a 5.3 Ly5 i think...I have DOD and flexfuel option.

    On my old 2006 Tahoe, i made all the timing tables the same which were the GM high table. Can i do the same for this new engine?

    I find that the engine preforms better, and i always use 95 octane fuel. I do not mess with my Maf temp to timing pull.

    on my new tahoe I have full length headers, catback, 1.8 rockers, Throttle body spacer and air intake kit. I am about to disable the P0420/P0430 due to my high flowing cats...The MIL is starting to bother me.

    Looking forward to your replies
    American Muscle, European Design, Japanese Tactics

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

    Default

    Do you have cats with your headers...?

    Replace the cats with pipes, replace the rear O2 with plugs, set the rear O2 codes and the cat codes to Not-Reported and MIL ON (yes ON... this makes the readiness tests say Ready).

    Disclaimer: not for usage in USA.
    .. applicable only outside the USA.

  3. #3
    Senior Member Naf's Avatar
    Join Date
    Aug 2006
    Posts
    183

    Default

    I would like to keep the cats...

    What about the timing?
    American Muscle, European Design, Japanese Tactics

  4. #4
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Ok, then set the cat codes to Not-Reported and MIL ON.

    Disclaimer: not for usage in USA... applicable only outside the USA.

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

    Default

    Timing: if you're running with the MAF, the the ECM slides between the timing tables when knock is detected... you're safer to keep the Low Octane table lower than the High Octane table... if your engine really is not knocking then the ECM will use timing from the HO table so performance should not be an issue.

  6. #6
    Senior Member Naf's Avatar
    Join Date
    Aug 2006
    Posts
    183

    Default

    Sir,

    That isnt my main question....I am more concerend about copyin the high timing table to all the other tables as mentioned before...

    I have the DOD or now known as AFM...Will copyin the high timing to the others for a more smoother operation cause issues?

    I will not play with knock nor MAF timing retards
    American Muscle, European Design, Japanese Tactics

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

    Default

    Oh, I see... AFM/DOD is out of my league... someone who knows will chime in...

    In the meantime do post your tune file.

  8. #8
    Senior Member Naf's Avatar
    Join Date
    Aug 2006
    Posts
    183

    Default

    I will once i get my efi updated and registered once again...
    American Muscle, European Design, Japanese Tactics

Similar Threads

  1. Billet LT1 Timing Cover - Clears Double Row Timing Chain
    By S10Wildside in forum Conversions / Aftermarket Parts
    Replies: 3
    Last Post: November 17th, 2009, 12:15 AM
  2. EGR timing
    By pullincrazy88 in forum Vortec V6/V8 Specific
    Replies: 0
    Last Post: September 11th, 2008, 02:58 PM
  3. timing vs AFR
    By odd boy in forum General (Petrol, Gas, Ethanol)
    Replies: 3
    Last Post: July 30th, 2008, 10:59 AM
  4. Timing
    By minytrker in forum General (Petrol, Gas, Ethanol)
    Replies: 9
    Last Post: March 2nd, 2006, 10:59 AM
  5. Log timing
    By purrvert in forum General
    Replies: 0
    Last Post: February 19th, 2006, 03:27 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
  •