Results 1 to 5 of 5

Thread: ECM Replacement

  1. #1
    Noob
    Join Date
    Aug 2010
    Posts
    31
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default ECM Replacement

    Has anyone had to replace their ECM?

    I have a 2007 Mazda 3, 2.0L, MT. It's confirmed the ECM is toast.

    Any suggestions or recommendations on where to go or purchase?

    Thanks in advance.

  2. #2
    Newbie
    Join Date
    Oct 2014
    Location
    Orillia
    Posts
    215
    Thanks
    5
    Thanked 24 Times in 21 Posts
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)

    Default Re: ECM Replacement

    Scrap yard is probably your best bet.

  3. #3
    Sr Member Flagrum_3's Avatar
    Join Date
    May 2005
    Location
    Scarborough
    Posts
    6,173
    Thanks
    334
    Thanked 324 Times in 258 Posts
    Mentioned
    97 Post(s)
    Tagged
    0 Thread(s)

    Default Re: ECM Replacement

    I second a scrap yard.

  4. #4
    Noob
    Join Date
    Aug 2010
    Posts
    31
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Re: ECM Replacement

    Yeah, I already started looking around various JDM scrap yards. I just wasn't sure if anyone had dealt with this before. I also found a shop that can program the used ECM for about $200.

    Also during my search I also (sadly) discovered apparently that the 2.0L ECM is not repairable like the 2.3L ECM.

  5. #5
    Sr Member
    Join Date
    Sep 2006
    Posts
    3,337
    Thanks
    13
    Thanked 59 Times in 41 Posts
    Mentioned
    19 Post(s)
    Tagged
    0 Thread(s)

    Default Re: ECM Replacement

    it is NOT a plug and play replacement
    the "as-built" data needs to be reprogrammed and ECU reflashed... essentially, it has to be "married" to the car

    I don't think a JDM ECU will work either

    you'll need a shop that has access to all the mazda programming data or you'll need to go to the dealer

    if whoever diagnosed your issue and determined it to be the ECU, you should go to the dealer and have them do their diagnosis... it's very rare for an ECU to fail
    2005 Mazda3 SP23 hatchback (auto)
    2016 Mazda3 Sport GT (auto)

Similar Threads

  1. PCV Replacement
    By Google in forum Engine & Drivetrain
    Replies: 3
    Last Post: 09-23-2016, 10:39 AM
  2. Key replacement
    By jnjosh in forum Problems with the Mazda3
    Replies: 1
    Last Post: 09-02-2016, 04:52 PM
  3. OEM HID Replacement
    By Impressive in forum Lighting, Electrical & Security
    Replies: 9
    Last Post: 11-14-2015, 10:00 PM
  4. LCA replacement
    By goodcase in forum Suspension & Brakes
    Replies: 5
    Last Post: 05-11-2014, 11:06 PM
  5. ECU replacement.
    By nuttygent in forum Engine & Drivetrain
    Replies: 2
    Last Post: 09-27-2011, 03:29 PM

Posting Permissions

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