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Where to buy MD309947 ECU?

Posted by Clay, Nov 1, 2007

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  1. Clay

    Clay Proven Member

    Joined Jan 2, 2003
    626, California
    Glendale Mitsubishi wants 900+
    Aspen Mitsubishi wants 800+

    The alternative is Engine Control Units.com http://www.enginecontrolunits.com/index.html

    I'm looking for a brand new ECU, not used. Anyone have suggestions on where to buy a MD309947 (Eprom) ECU for my 95 GST?

    275  0

    1995 Mitsubishi Eclipse GST
    manual · 2G DSM
  2. AndrewD5418

    AndrewD5418 Proven Member

    Joined Feb 16, 2006
    West Bend, Wisconsin
    Why would you want a brand new when a used one will do just fine/be the same?
  3. Clay

    Clay Proven Member

    Joined Jan 2, 2003
    626, California
    Because of my paranoia with getting a defective unit. My current Ecu looks perfectly fine, no visible acid burns, and it gives me CEL p0335 (Crank angle sensor).


    275  0

    1995 Mitsubishi Eclipse GST
    manual · 2G DSM
  4. just2asian

    just2asian Proven Member

    Joined Feb 13, 2006
    Stow, Ohio
    are u sure its the ecu?
  5. numlock666

    numlock666 Proven Member

    Joined Sep 27, 2005
    Long Beach, California
    looks like Wes saved ya. Check out the DSMlink Wiki site, it has info on how to test your ECU to see if any traces have a problem. Also if you bring it to one of the monday night meets, we can look at it for ya. Another note, the dealership will want and arm, leg, firstborn child, and grandchild for one due to it being discontinued. I'd rather take my chances with buying a USED OEM one than some remanufactered one from china anyday.
  6. 98mitsuGSX-SD

    98mitsuGSX-SD Proven Member

    Joined Jul 24, 2004
    Omaha, Nebraska
    You can look at www.ffwdconnection.com and call them in regards to there 2g eprom ECU. That's where I bought my dsmlink and eprom ECU. There's usually a back-order. You can also ask them about there re-build process just to make sure your ECU is in top condition.
  7. Clay

    Clay Proven Member

    Joined Jan 2, 2003
    626, California
    Thanks for the tips guys. YES, the ECU is the problem and I'm very SURE. :notgood: I swapped in a 99 ECU and the car ran normally.

    Radiator fans is no longer always on
    Dreaded p0335 crank angle sensor CEL is gone
    Timing is no longer retarded from 5-3.

    275  0

    1995 Mitsubishi Eclipse GST
    manual · 2G DSM
  8. Dirty Dans dsm

    Dirty Dans dsm Probationary Member

    Joined Feb 23, 2019
    Olathe, Kansas
    When you swapped the ecu out did you have to flash it to the vin #? I thought the ecu was vin specific..
  9. PlanZero

    PlanZero Proven Member

    Joined Aug 13, 2013
    Easton, Pennsylvania
    [QUOTE I thought the ecu was vin specific..[/QUOTE]
    Nope. If the OP doesn't have DSM link and isn't planning on getting it, he could use a non eprom 2ga ECU which are easily available new old stock and inexpensive. Any 2ga ECU will work, whether manual or automatic, awd or fwd.

    Street Build 4K  8

    1996 Eagle Talon TSi
    fwd · automatic · 2G DSM

    Street Build 3K  0

    1997 Eagle Talon TSi AWD
    automatic · 2G DSM
  10. arrowhead

    arrowhead Proven Member

    Joined Apr 19, 2011
    miami, Florida
    Hope he got one by now,it has only been 12 years.

    Road Race Build 2K  0

    1998 Eagle Talon TSi
    manual · 2G DSM

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