Results 1 to 9 of 9

Thread: $0D AE temperature difference tuning

Threaded View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Fuel Injected! JeepsAndGuns's Avatar
    Join Date
    Sep 2011
    Location
    alabama
    Age
    41
    Posts
    1,705

    $0D AE temperature difference tuning

    OK, following my last thread, I am now having a problem with AE. When I changed my base timing to 0*, it helped a lot of things, but my AE suddenly became too little. It would go lean if I hit the gas. A little tuning/emulation got it back to where it should. However, when I adjusted it, the engine was already warmed up. Well yesterday I did a cold start and when the engine is cold and warming up, AE is flooding it. I'm talking like down to 10 to 1 AFR and boggs the engine. Once it gets warmed up, its fine. So apparently I need to adjust some type of a temperature compensation for AE, however I'm not sure what to adjust and by how much. I have found a few parameters, but the value is "factor" and I have no idea what that means, which way to adjust it and by how much. I figured I would ask before I start fooling around with them, as I only get one chance a day to try it. Just a reminder, I have a MAT installed.

    I have found the following 3 parameters that I think may have something to do with it.
    "AE correction factor Vs. temperature" (0x4B67)
    "TPS difference AE correction factor Vs. MAT" (0x4B78)
    "MAP difference AE correction factor Vs. temperature" (0x4B89)

    Then possiably this one too:
    "TPS difference AE coeffcient Vs. temperature" (0x4B5A)

    So what is, or does "factor" mean, whats the best way to adjust it, and which way do I need to adjust it to take some AE out when cold?
    Attached Images Attached Images
    79 Jeep Cherokee, AMC 401, T-18 manual trans, hydroboost, 16197427 MPFI system---the toy

    93 Jeep YJ Wrangler, 4.0L, 5 speed, 8.8 rear, homebrew hub conversion and big brakes, hydroboost, 2.5in OME lift, 31x10.50's---the daily driver

    99 Jeep WJ Grand Cherokee limited, 4.0L, auto, 2wd, leather and power everything, 99% stock---the long distance highway ride.

Similar Threads

  1. Replies: 65
    Last Post: 06-20-2014, 07:50 AM
  2. 7747 and temperature
    By Fastmax32168 in forum GM EFI Systems
    Replies: 3
    Last Post: 01-18-2013, 07:12 PM
  3. Exporting Difference Tool listing
    By belaw in forum TunerPro Tuning Talk
    Replies: 1
    Last Post: 08-04-2012, 04:44 PM
  4. Head Temperature Old School!
    By EagleMark in forum Gear Heads
    Replies: 2
    Last Post: 06-19-2011, 06:37 AM
  5. Coolant Temperature Sensor Diagnostic Test CTS
    By EagleMark in forum GM EFI Systems
    Replies: 0
    Last Post: 03-28-2011, 04:33 AM

Bookmarks

Posting Permissions

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