Possible ECM problem
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HT4100 4.1, 4.5, 4.9 Discussion, Possible ECM problem in Cadillac Engine Technical Discussion; Hello everyone, I'm new at this so please forgive if not doing something right. I have a 1992 STS with ...
  1. #1
    jpoteat is offline Cadillac Owners Member
    Join Date
    Feb 2006
    Posts
    8

    Possible ECM problem

    Hello everyone, I'm new at this so please forgive if not doing something right. I have a 1992 STS with only 60K miles, love the car but something strange happened today. The speedometer dropped to 0, everything electronic flatlined, and the transmission dropped out of overdrive. From a dead stop you have to manually shift the car otherwise it tries to starts in 3rd gear.

    The following codes show all history, E052-I034-A050-I052 (for some reason nothing current, even though the check engine light was on during the time)

    I made it home, and now it's fine.

    Any thoughts?

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  3. #2
    NickySantoro is offline Cadillac Owners Fanatic
    Automobile(s): 1993 Eldo 4.9 66K miles
    Join Date
    Nov 2005
    Location
    Nazi Jerky, libtard central
    Posts
    368

    Re: Possible ECM problem

    Check all cable connections, the cables themselves, and the battery. Wiggle all the connectors on the ECM. Low voltage seems to make these cars "psychotic", for lack of a better term.

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