Results 1 to 8 of 8

Thread: Ecm/ecu

  1. #1

    Array
    Status
    Offline
    Join Date
    11-14-2017
    Posts
    118
    Location

    Kellogg, Idaho
    Vehicle

    1990 Dodge D-50
    Engine

    4G64

    Ecm/ecu

    I'm sure this question has been answered a ton of times but I can't find and posts when I search. If I have to replace my computer /ECM does it have to be the exact number that I have. Mine is a 155029.

  2. #2

    Array
    Status
    Offline
    Join Date
    01-24-2016
    Posts
    46
    Location

    az
    Vehicle

    1987 Dodge Ram 50
    Engine

    G54B
    What year/engine do you have???

    This link should provide you with what you are looking for.

    http://www.mightyram50.net/vbulletin...+ecm+swap+Info

  3. #3

    Array
    Status
    Offline
    Join Date
    11-14-2017
    Posts
    118
    Location

    Kellogg, Idaho
    Vehicle

    1990 Dodge D-50
    Engine

    4G64
    i have a 1990 2.4l. previous owner gave up when it died and had bno spark. I have it completly back together and have the same issue. power at coil when key is on no spark when turning it over. tried a different MFI relay and computer out of a 92 at pull and save so don't know if they are good. did the check list on the MFI and it seem to be ok. don't get power to fuel pump when key is in on posisition but pump does work and pwered at start pos.

  4. #4

    Array
    Status
    Offline
    Join Date
    06-15-2014
    Posts
    6,059
    Location

    Adelaide, South Australia
    Vehicle

    1985 Mitsubishi L200
    Engine

    G63B
    You got power into and out of the distributor? The ICM in the distributor may be dead.

  5. #5


    Array
    Status
    Offline
    Join Date
    03-21-2011
    Posts
    767
    Location

    WA
    Vehicle

    1989 Mitsubishi Mighty Max
    Engine

    4G63-T
    Had a Montero with good fuel pressure. Did not give fuel or spark. Distributor signal tested good with a good dvom with min/max feature. Fuel was tested with noid lights and spark was tested with spark tester. Went to oreillys and they had refurbished pcm, fired up. Not saying the same scenario as you are having but should help you out in diagnosing.

    The refurbished pcm had a core charge and did not have the oem part sticker as was partially torn off. They did offer a warranty.

  6. #6

    Array
    Status
    Offline
    Join Date
    06-15-2014
    Posts
    6,059
    Location

    Adelaide, South Australia
    Vehicle

    1985 Mitsubishi L200
    Engine

    G63B
    Try getting some fault codes out of it. If it is too hard, pull the ECM out and crack the case open. Look for discoloration on the circuit board and/or swollen capacitors. Bad capacitors are the #1 reason why ECM's stop working. If you can hold a soldering iron and can read the values off the sides of the suspect capacitors, you should be able to fix this yourself (if this appears to be the reason why it's not working)

  7. #7

    Array
    Status
    Offline
    Join Date
    11-14-2017
    Posts
    118
    Location

    Kellogg, Idaho
    Vehicle

    1990 Dodge D-50
    Engine

    4G64
    Got the fault codes 13, 15, 21, 22

  8. #8

    Array
    Status
    Offline
    Join Date
    11-14-2017
    Posts
    118
    Location

    Kellogg, Idaho
    Vehicle

    1990 Dodge D-50
    Engine

    4G64
    OK reset the codes and 13 and 21 went away still have 15 and 22

Bookmarks

Bookmarks

Posting Permissions

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