Results 1 to 7 of 7

Thread: Error 1215. Air Sensor.

  1. #1
    Join Date
    Oct 2005
    Location
    Durban, South Africa
    Posts
    398

    Default Error 1215. Air Sensor.

    Can anyone quickly tell me where the air sensor is located on the M20 engine? I've just got this error on the screen now and not too sure if it's just dirty or what as now the car has a lot of hesitation on pull off.

    Thanks guys.

    Anything else that can cause this problem? I need to have this issue fixed by tonight if possible!
    Car: BMW 525iA.
    Engine: M20.
    Trans: Auto.
    Year: 1990.

    Location: Durban, South Africa.

  2. #2
    Join Date
    May 2006
    Location
    Perth Western Australia
    Posts
    438

    Default

    The air temp sensor is part of your air flow meter. If it's dead you'll need a replacement air flow meter, they are a thermal resistor (thermistor) and are not replacable on thier own.

    Ross
    BMW parts professional

    Previous rides:
    BMW
    E12 M535i (go the dogleg!)
    E28 M535i (MMM M88!)
    E34 535i M

    MAZDA:
    RX7 S-IV T04 (440 hp ATW)
    RX7 S-I 13b bridge port
    RX4 13b peripheral port

  3. #3
    Join Date
    Oct 2005
    Location
    Durban, South Africa
    Posts
    398

    Default

    Okay. Could a hose is a water hose cause the same problem? (Other then a heating issue) or a hole in an intake pipe?
    Car: BMW 525iA.
    Engine: M20.
    Trans: Auto.
    Year: 1990.

    Location: Durban, South Africa.

  4. #4
    Join Date
    May 2006
    Location
    Perth Western Australia
    Posts
    438

    Default

    No, the sensor is used by the engine computer to adjust fuel and ignition timing maps (Temperature compensation).

    Ross
    BMW parts professional

    Previous rides:
    BMW
    E12 M535i (go the dogleg!)
    E28 M535i (MMM M88!)
    E34 535i M

    MAZDA:
    RX7 S-IV T04 (440 hp ATW)
    RX7 S-I 13b bridge port
    RX4 13b peripheral port

  5. #5
    Join Date
    Jan 2004
    Posts
    4,148

    Default 1215 is the afm or maf sensor, in his case afm not the

    temp sensor. Since they rarely fail out right i would check the connection to the air flow meter first.



    Quote Originally Posted by Ausmpower
    No, the sensor is used by the engine computer to adjust fuel and ignition timing maps (Temperature compensation).

    Ross


  6. #6

    Default

    Quote Originally Posted by Rob
    Okay. Could a hose is a water hose cause the same problem? (Other then a heating issue) or a hole in an intake pipe?
    Rob - Bentley manual provides same table for testing the intake temperature sensor of AFM and stand-alone intake air temperature of M50 and M60 engines... This suggests that their operation is similar. The stand-alone intake air temperature costs ~$50US and may prove to be a viable option if you are willing to experiement with wiring and support in case your temperature sensor is in fact bad:




    The picture above is from bavauto.com site. The product has came up after a query "intake temperature sensor" for 1989 535...
    Last edited by Rustam; 05-26-2006 at 08:43 PM.

    deleted air conditioning

  7. #7
    Join Date
    Oct 2005
    Location
    Durban, South Africa
    Posts
    398

    Default

    Thanks Rustam. Will check it out.
    Car: BMW 525iA.
    Engine: M20.
    Trans: Auto.
    Year: 1990.

    Location: Durban, South Africa.

Similar Threads

  1. Rough running and 1215 code?
    By Bimminator in forum 5 Series BMW
    Replies: 3
    Last Post: 07-21-2006, 06:35 PM
  2. What is O2 sensor control error
    By ra_pro in forum 5 Series BMW
    Replies: 2
    Last Post: 03-23-2006, 11:39 AM
  3. Replies: 0
    Last Post: 01-02-2005, 02:31 PM
  4. Fault Code 1215 resolved...I think
    By Daskoff in forum 5 Series BMW
    Replies: 1
    Last Post: 07-12-2004, 08:49 AM
  5. Code 1215 - Air Flow fault - do you guys...
    By Daskoff in forum 5 Series BMW
    Replies: 6
    Last Post: 07-03-2004, 08:35 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
  •