E46 323 Lambda sensors!!!!! .. Chewbacca?? **FIXED**
Page 1 of 2 12 LastLast
Results 1 to 10 of 12
  1. #1
    BFI Senior
    steveo76's Avatar
    Join Date
    Aug 2012
    Location
    Preston/Blackpool (UK)
    Posts
    263
    Car Specs:
    Year
    1999
    Model
    E46 323I Saloon
    Engine
    323I
    Fuel
    petrol
    Thanks
    42
    Thanked 109 Times in 79 Posts


    Donate Please click the
    image to support
    BMWForums.info
    Click Here To Contribute To Our Site

    Lambda sensors!!!!! .. Chewbacca?? **FIXED**

    Ok here is the story of my car now testing my will to live

    Last week i hooked up INPA to check faults with my car and i had fault (202) Lambda sensor bank one, replaced lambda sensor, Cleared fault all has been well.

    Today whilst driving the car lacked power when i booted it and held back,,,sort of limp home mode feeling ,,And with it being Auto it refused to go up a gear..

    I pull over popped the bonnet to take a look for anything untoward and all seemed ok ticked over a bit lumpy!


    I get back in and it drove home fine?

    Hooked up to INPA and faults were lambda sensor bank two,,,cylinders 4+ 5+ 6

    Car drives ok now and there don't seem to be any vac leaks

    So far this car has had Radiator changed, water pump, heater hose, both control arms, lambda sensor...All within the three months i have owned it
    Last edited by steveo76; 19-10-2012 at 12:54.

  2. #2
    A clever person solves a problem. A wise person avoids it.
    Administrator
    Ronnie's Avatar
    Join Date
    Mar 2012
    Location
    Dorset.
    Posts
    8,239
    Car Specs:
    Year
    1987
    Model
    Racing Shed
    Engine
    1.2l
    Fuel
    1/2 a tank.
    Thanks
    5,794
    Thanked 4,661 Times in 3,034 Posts


    You're either very unlucky or have a issue elsewhere, can you view how quickly the lambda sensor is switching on your Inpa? May help in diagnosing the issue.
    Please donate Here to help support the site.
    BMW Forums.info - Vendors
    Harry Fairbairn BMW - Massive 15% discount on genuine BMW parts.
    Essex Turbo - Turbo Specialist.
    Skyinsurance - Insurance Specialist.
    BMWForums.info.(BFI) The best BMW forum.
    BMW Forums.info Facebook page.
    BMW Forums.info Facebook group.
    BFI Nightshift Crew President.

  3. #3
    BFI Senior
    steveo76's Avatar
    Join Date
    Aug 2012
    Location
    Preston/Blackpool (UK)
    Posts
    263
    Car Specs:
    Year
    1999
    Model
    E46 323I Saloon
    Engine
    323I
    Fuel
    petrol
    Thanks
    42
    Thanked 109 Times in 79 Posts


    Quote Originally Posted by Ronnie View Post
    You're either very unlucky or have a issue elsewhere, can you view how quickly the lambda sensor is switching on your Inpa? May help in diagnosing the issue.


    Unlucky sounds about right for me mate

    Would't know to go about seeing when it switches on mate?

  4. #4
    But you can call me cat-snake.
    Site Admin
    Ferret's Avatar
    Join Date
    Mar 2012
    Location
    Lincolnshire
    Posts
    7,642
    Car Specs:
    Year
    2001
    Model
    E46
    Engine
    330
    Fuel
    Momentum
    Thanks
    4,286
    Thanked 5,095 Times in 3,168 Posts


    Quote Originally Posted by steveo76 View Post
    Would't know to go about seeing when it switches on mate?
    Not switching on, but switches.

    Somewhere in INPA is an analogue value, and you'll see the bar rising and dropping again... Thats the switching Ronnie mentioned.

  5. #5
    BFI Senior
    steveo76's Avatar
    Join Date
    Aug 2012
    Location
    Preston/Blackpool (UK)
    Posts
    263
    Car Specs:
    Year
    1999
    Model
    E46 323I Saloon
    Engine
    323I
    Fuel
    petrol
    Thanks
    42
    Thanked 109 Times in 79 Posts


    Silly me LOL!

    I will take a proper look at the analogue values of the lambda sensors in the morning Ferret and report back

  6. #6
    BFI Senior
    steveo76's Avatar
    Join Date
    Aug 2012
    Location
    Preston/Blackpool (UK)
    Posts
    263
    Car Specs:
    Year
    1999
    Model
    E46 323I Saloon
    Engine
    323I
    Fuel
    petrol
    Thanks
    42
    Thanked 109 Times in 79 Posts


    Before i did anything today i did this simple test i found on you tube in regards to vac leaks>

    BMW Oil seperator (chubacca noises) - YouTube

    My car sounds exactly the same

    The ccv looks like a right pita to get to as it's tucked away under the inlet manifold why the hell did they locate it there for gods sake

    Anyone here changed one before? i need some help on this bugger!

  7. #7
    BFI Senior
    steveo76's Avatar
    Join Date
    Aug 2012
    Location
    Preston/Blackpool (UK)
    Posts
    263
    Car Specs:
    Year
    1999
    Model
    E46 323I Saloon
    Engine
    323I
    Fuel
    petrol
    Thanks
    42
    Thanked 109 Times in 79 Posts


    Just thought i would share my findings of today when i changed the CCV.

    Total time spent arsing about was approx three hours

    It is not a hard job at all just bloody time consuming due to its location...

    This is the first apparent problem that i noticed once i started stripping things down, I came across a split vac pipe from the fuel pressure regulator to the CCV. Only the M52/(TU)s have this pipe. also the CCV was covered in old oil.




    Once i took the CCV out of the car i opened it up to find this>






    The internals were full of crap and two tears in the rubber diaphram

    Car runs sweet again now with no codes showing and no silly chewbacca sounds
    Last edited by steveo76; 19-10-2012 at 12:53.

  8. The Following 4 Users Say Thank You to steveo76 For This Useful Post:

    dailydoggy (19-10-2012),Ronnie (23-10-2012),Steve (19-10-2012),watty (20-10-2012)

  9. #8
    Banned
    dailydoggy's Avatar
    Join Date
    Mar 2012
    Location
    cheshire
    Posts
    3,710
    Car Specs:
    Year
    2001
    Model
    E46
    Engine
    330i
    Fuel
    Petrol
    Thanks
    661
    Thanked 2,360 Times in 1,417 Posts


    marvelous news...

  10. #9
    BFI Senior
    steveo76's Avatar
    Join Date
    Aug 2012
    Location
    Preston/Blackpool (UK)
    Posts
    263
    Car Specs:
    Year
    1999
    Model
    E46 323I Saloon
    Engine
    323I
    Fuel
    petrol
    Thanks
    42
    Thanked 109 Times in 79 Posts


    It has worked wonders with my fuel consumption

    OBC now showing 30MPG pottering about and 38/40 on the motorway

  11. #10
    Banned
    dailydoggy's Avatar
    Join Date
    Mar 2012
    Location
    cheshire
    Posts
    3,710
    Car Specs:
    Year
    2001
    Model
    E46
    Engine
    330i
    Fuel
    Petrol
    Thanks
    661
    Thanked 2,360 Times in 1,417 Posts


    it will do running lean the ECU is continously telling the injectors to spray more fuel in to try richen the mixture up, its why vacuum leaks are deadly as its unmetered air (not being measured by the MAF) entering the engine which gets noticed by the lambda's which in turn tells the ECU i need more fuel cos im detecting too much oxygen in the spent gases...


    hence shite MPG and a dirty running and unhappy engine...
    Last edited by dailydoggy; 20-10-2012 at 17:19.

  12. The Following User Says Thank You to dailydoggy For This Useful Post:

    steveo76 (21-10-2012)

Page 1 of 2 12 LastLast

User Tag List

Posting Permissions

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