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AEM Help with aem ems4 in 1G

Posted by Linroy Simon, Dec 4, 2020

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  1. Linroy Simon

    Linroy Simon Probationary Member

    5
    1
    Joined Dec 1, 2020
    Houston, Texas
    Car came with a aem v1 and while the car was down for a cable seals job i decided to change out to an aem ems4. the engine is now back together and I’m trying to calibrate the ecu but i can’t get the ecu to turn stat sync on. I am getting an rpm signal so i think the cas is working. Not sure what else can be the problem. Another thing with the key in the on position the battery n oil lights don’t come on
     

    Street Build 134  1

    1990 Mitsubishi Eclipse GST
    fwd · manual · 1G DSM
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  2. DSMPT

    DSMPT Proven Member

    1,052
    605
    Joined Jun 12, 2014
    Japan / Mexico, Arizona
    Are you sure that you made the harness properly since the EMS 4 is not PnP? Should upload a cal file and a log file.
     

    Drag Race Build 3K  7

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    Street Build 2K  4

    1998 Mitsubishi Eclipse GSX
    awd · automatic · 2G DSM
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  3. Linroy Simon

    Linroy Simon Probationary Member

    5
    1
    Joined Dec 1, 2020
    Houston, Texas

    Attached Files:

    Street Build 134  1

    1990 Mitsubishi Eclipse GST
    fwd · manual · 1G DSM
    Loading...
  4. DSMPT

    DSMPT Proven Member

    1,052
    605
    Joined Jun 12, 2014
    Japan / Mexico, Arizona
    Are you running with AEMPro? If so, you have to switch to AEMTuner and manually copy parameters if the car was running good before. And see if the stat sync would get ON while cranking.
     

    Drag Race Build 3K  7

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    Street Build 2K  4

    1998 Mitsubishi Eclipse GSX
    awd · automatic · 2G DSM
    Loading...

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