Results 1 to 5 of 5

Thread: Rich...lean...rich...lean......????

  1. #1
    Lifetime Member hquick's Avatar
    Join Date
    Jan 2007
    Posts
    1,371

    Default Rich...lean...rich...lean......????

    Can someone please have a look at this log and tell me if they see anything?
    This just suddenly did this.
    VE was dialled in pretty well prior to this whacky event this evening.
    Have a look at the idling section at the end.
    Didn't feel any different....no stumbles etc.
    Attached Files Attached Files
    Howard

    YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
    MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
    DUCT TAPE.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.


    98 K1500 'HOLDEN' Suburban.
    Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit

  2. #2
    Lifetime Member hquick's Avatar
    Join Date
    Jan 2007
    Posts
    1,371

    Default

    A screenshot at idle.

    Howard

    YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
    MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
    DUCT TAPE.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.


    98 K1500 'HOLDEN' Suburban.
    Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit

  3. #3
    Lifetime Member
    Join Date
    Apr 2003
    Posts
    379

    Default

    You need to log inj pulse width , and the factory O2 sensors for a sanity check.

    Do you have the wideband directly connected to a good 12V source and a good earth ? a cig lighter socket is niether.

  4. #4
    Lifetime Member hquick's Avatar
    Join Date
    Jan 2007
    Posts
    1,371

    Default

    Thanks Delco,
    I just ran a log upto op temp and don't see anything causing what I saw yesterday.
    At the start of the log you can see the WBO2 drop out due to me unplugging it to check the connection. Also I see that when disconnected...it shows rich..not lean like I was seeing in the previous log.

    Attached Files Attached Files
    Howard

    YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
    MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
    DUCT TAPE.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.


    98 K1500 'HOLDEN' Suburban.
    Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit

  5. #5
    Lifetime Member hquick's Avatar
    Join Date
    Jan 2007
    Posts
    1,371

    Default

    Couldn't seem to replicate the problem.
    Attached Files Attached Files
    Howard

    YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
    MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
    DUCT TAPE.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.


    98 K1500 'HOLDEN' Suburban.
    Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit

Similar Threads

  1. running lean when commanding rich
    By Ritch in forum Gen III V8 Specific
    Replies: 6
    Last Post: June 12th, 2008, 03:37 AM
  2. Please Help Rich then Lean
    By vatman02 in forum Gen III V8 Specific
    Replies: 5
    Last Post: April 4th, 2008, 12:29 PM
  3. Lean at start up then rich at Idle
    By pwilson22000 in forum Forced Induction and Nitrous Oxide (N20)
    Replies: 3
    Last Post: August 12th, 2006, 08:19 AM
  4. Lean cruise running rich
    By limited cv8r in forum General (Petrol, Gas, Ethanol)
    Replies: 14
    Last Post: May 12th, 2006, 01:12 PM
  5. Rich=Lean??
    By DrX in forum General (Petrol, Gas, Ethanol)
    Replies: 0
    Last Post: April 8th, 2006, 06:27 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
  •