Results 1 to 6 of 6

Thread: Need Help Data logging GM 4.3 CPI I gets wonky numbers. Could the PCM be bad?

  1. #1
    Electronic Ignition!
    Join Date
    Jan 2019
    Posts
    14

    Need Help Data logging GM 4.3 CPI I gets wonky numbers. Could the PCM be bad?

    The engine runs but is very rich. When I start the datalog it shows odd numbers that don't change even when I increase the RPM at WOT it gets to about 3000 RPM and starts sputtering.
    The datalog shows
    125 TAC
    12.2 Map
    451 Spark Advance
    temps are all -33
    .5 Battery Voltage (Battery is fully charged)
    5 MPH (when sitting still in shop)


    I have a 4.3L V6 (Vin W) with CPI.
    PCM:16168625
    .bin is BBNT.
    XDF "Advanced $E6 TP5 v250.xdf”
    ADX "$E6 A201_E6_v250.adx”
    using Tuner Pro RT with an Autoprom connected directly to the Memcal with a G1 adapter.

  2. #2
    Fuel Injected!
    Join Date
    Jan 2017
    Posts
    411
    If the data seems to be non sensible, possibly you have the wrong adx. Try $0D
    Last edited by stew86MCSS396; 08-07-2020 at 12:50 AM.

  3. #3
    Electronic Ignition!
    Join Date
    Jan 2019
    Posts
    14
    Thanks Ill give that a try.

  4. #4
    Fuel Injected!
    Join Date
    Jan 2017
    Posts
    411
    Quote Originally Posted by 4.3JeepYJ View Post
    The engine runs but is very rich. When I start the datalog it shows odd numbers that don't change even when I increase the RPM at WOT it gets to about 3000 RPM and starts sputtering.
    The datalog shows
    125 TAC
    12.2 Map
    451 Spark Advance
    temps are all -33
    .5 Battery Voltage (Battery is fully charged)
    5 MPH (when sitting still in shop)

    I have a 4.3L V6 (Vin W) with CPI.
    PCM:16168625
    .bin is BBNT.
    XDF "Advanced $E6 TP5 v250.xdf”
    ADX "$E6 A201_E6_v250.adx”
    using Tuner Pro RT with an Autoprom connected directly to the Memcal with a G1 adapter.
    Wait a minute...are you trying to emulate with Autoprom? I mean if the Autoprom is connected to the Memcal than that's the only way to get it to run other wise you would be running off the limp home mode which from what I've experienced, you'd get no/wonky data on the dash. Once in LHM, only way to get it out of it was to disconnect battery and start all over.

    With that said, you should be able to identify which mask the bin is using which should coincide with which xdf and adx to use. Also you should look into disabling the "checksum" if you're going to be emulating and making on the fly changes.

  5. #5
    Electronic Ignition!
    Join Date
    Jan 2019
    Posts
    14
    I suspected it was running in limp mode. How do I identify which mask the bin is using?

  6. #6
    Fuel Injected!
    Join Date
    Jan 2017
    Posts
    411
    There should be a MaskID scalar in TunerPro. See if it's $0D $0E $31 then use corresponding xdf and adx. If you're trying to emulate read up on disabling the checksum.

Similar Threads

  1. TunerPro RT Data Logging - Saving the Data
    By Jeep71 in forum Introductions
    Replies: 1
    Last Post: 08-29-2019, 12:57 AM
  2. New to TBI Data logging and such.
    By georgeb in forum Introductions
    Replies: 30
    Last Post: 08-11-2015, 04:29 AM
  3. Data logging
    By myburb in forum GM EFI Systems
    Replies: 4
    Last Post: 05-09-2015, 05:43 PM
  4. Having an issue with 383 TBI and new to data logging
    By Chewy1576 in forum GM EFI Systems
    Replies: 12
    Last Post: 03-02-2015, 09:00 PM
  5. Data logging
    By myredprky in forum Introductions
    Replies: 2
    Last Post: 03-03-2013, 09:00 PM

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
  •