1995 E36 328 Jul Coupe and 1994 E36 325 Oct Coupe - OBD1 diagnostic pick list required. - Page 2

Notices
 

Thread: 1995 E36 328 Jul Coupe and 1994 E36 325 Oct Coupe - OBD1 diagnostic pick list required.

Reply to Thread
Page 2 of 2 FirstFirst 12
Results 11 to 16 of 16
  1.  
    #11
    BMW Guru
    Car Details
    TheEnd's Car Details
    Model of Car:
    540
    Year of Manufacture:
    1998
    Transmission Type:
    Auto
    Car Body Type:
    Saloon
    TheEnd's Avatar
    Join Date
    Jun 2010
    Location
    Birmingham
    Posts
    8,979
    Thanks
    478
    Thanked 2,988 Times in 2,440 Posts
    It was designed to be OBD2 compliant, but it only was fully activated in the US.

    OBD2 features are lambda sensors after the cat to monitor that, a check engine light, and the 16 pin OBD2 connector.
    It would also have a long term adaptation which it collected data from the short term trims that pretty much everything has.

    The older stuff would do everything on the fly, the newer OBD2 type would gather the data and formulate a plan.
    The benefit of this is in the dark areas, ie over 3500-ish RPM where the lambda sensor isn't fast enough to supply data.

    With the OBD2 adaptation, it already has an idea of what needs to be added or taken away from the areas it can monitor, and it passes these details on.

    Full OBD2 compliance wasn't needed in Europe, so BMW left out a lot of those features, purely so you'd stick with BMW for diagnostics.

    One of the major features of OBD2 was cheap code readers (even if they can only check on emissions based data) so any garage could diagnose a car without needing 2k of kit from each different manufacturer.

    The hardware structure is capable of doing the full OBD2 stuff, but there might be silight differences, such as loom pins in euro ECU might not be connected for the extra post cat lambdas, and the coding for a euro version will cut out the OBD2 data stream.

    True OBD2 has to have the 16 pin connector, within reach of the drivers seat, accessible without the need for special tools
    It was quite a hit for manufacturers to allow all of this.

    It's also noteworthy that on the cars that have both the OBD2 16 pin, and the 20 pin ADS Connector, BMW didn't wire through some of the diag stuff to the obd2, so if you wanted to connect to the car for full diagnostics, you still had to use the 20 pin ADS if fitted.

    Pins 15 and 20 in the 20 pin are the diagnostic lines, the data is split over the 2, with the ABS on one, and the ECU on another. I did see something about 4cyls using a different pin too.

    MS41 is OBD2 compliant, but not enabled, and has an eeprom soldered on, so ant changes are done via remapping / flashing rather than pulling and swapping a chip.
     
     

  2. Remove Advertisements
    BimmerForums.co.uk
    Advertisements
     

  3.  
    #12
    BMW Guru
    Car Details
    E36Coupe328's Car Details
    Model of Car:
    328 + 325
    Year of Manufacture:
    1995 + 1994
    Transmission Type:
    Manual
    Car Body Type:
    Coupe
    E36Coupe328's Avatar
    Join Date
    Jul 2010
    Location
    UK
    Posts
    2,970
    Thanks
    225
    Thanked 1,089 Times in 956 Posts
    So a simile would be:

    Hardware wise, I've got a fully featured PC

    Software wise (ok firmware) I've got a kernel that kicks up and gives me a basic calculator program.

    Oh and someone left the keyboard off and gave me a number pad so not too easy to do anything about it if I was bothered.



    OK, seeing as you are into tuning, does the OBD1 (lol) inlet manifold trick apply to my OBD1 328?


    No warranty of any kind implied or given and no liability for any loss, damage or injury, no matter how incurred accepted.

    Free Gas Kit* now fitted to free 328*

    *Based on ROI period exceeded
     
     

  4.  
    #13
    BMW Guru
    Car Details
    TheEnd's Car Details
    Model of Car:
    540
    Year of Manufacture:
    1998
    Transmission Type:
    Auto
    Car Body Type:
    Saloon
    TheEnd's Avatar
    Join Date
    Jun 2010
    Location
    Birmingham
    Posts
    8,979
    Thanks
    478
    Thanked 2,988 Times in 2,440 Posts
    the M50 manifold? yea, that works great, the biggest single improvement you can do for the money.
     
     

  5.  
    #14
    BMW Guru
    Car Details
    E36Coupe328's Car Details
    Model of Car:
    328 + 325
    Year of Manufacture:
    1995 + 1994
    Transmission Type:
    Manual
    Car Body Type:
    Coupe
    E36Coupe328's Avatar
    Join Date
    Jul 2010
    Location
    UK
    Posts
    2,970
    Thanks
    225
    Thanked 1,089 Times in 956 Posts
    Quote Originally Posted by TheEnd View Post
    the M50 manifold? yea, that works great, the biggest single improvement you can do for the money.
    Isn't it as simple as routing out the inlets to basically get the same from the original manifold?

    As my car is OBD1 anyway is it only a 326 manifold I would use?


    No warranty of any kind implied or given and no liability for any loss, damage or injury, no matter how incurred accepted.

    Free Gas Kit* now fitted to free 328*

    *Based on ROI period exceeded
     
     

  6.  
    #15
    BMW Guru
    Car Details
    TheEnd's Car Details
    Model of Car:
    540
    Year of Manufacture:
    1998
    Transmission Type:
    Auto
    Car Body Type:
    Saloon
    TheEnd's Avatar
    Join Date
    Jun 2010
    Location
    Birmingham
    Posts
    8,979
    Thanks
    478
    Thanked 2,988 Times in 2,440 Posts
    It's best to think of your car as an OBD2 with a few features missing.
     
     

  7.  
    #16
    BMW Guru
    Car Details
    E36Coupe328's Car Details
    Model of Car:
    328 + 325
    Year of Manufacture:
    1995 + 1994
    Transmission Type:
    Manual
    Car Body Type:
    Coupe
    E36Coupe328's Avatar
    Join Date
    Jul 2010
    Location
    UK
    Posts
    2,970
    Thanks
    225
    Thanked 1,089 Times in 956 Posts
    Lol worst of both worlds?


    No warranty of any kind implied or given and no liability for any loss, damage or injury, no matter how incurred accepted.

    Free Gas Kit* now fitted to free 328*

    *Based on ROI period exceeded
     
     

Page 2 of 2 FirstFirst 12
Tags for this Thread

View Tag Cloud

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