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curious yet confused. ECU fix?

Posted by spyderdrifter, Jul 12, 2011

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  1. spyderdrifter

    spyderdrifter Freelancer

    Joined Jul 11, 2009
    Some where, Colorado
    So, a few weeks ago I posted about my P0300 misfire code problem and got some good feedback, unfortunately nothing has really been changed on my car since then due to time constraints. This past weekend I had intended upon swapping my wire harness that goes from the fuse box to the alternator so some of my connectors would be replaced (and not need a splice job). The new harness was different for some reason, so it didn't get swapped. So I reconnected my original harness and put the radiator back in and so forth, new coolant too. I also surpassed 1,000 miles on the new build. So yesterday when I left my storage garage, after putting her all back together, she misfired/ bogged only once, and not even very bad. Now it hasn't misfired/ bogged at all today (not even going up the steep hill I have to drive up to get to work that it always bogs on) and seems to be running even better than before. My idle still sucks the big one, but I'm convinced I need DSMlink to fix that. I know our cars are awesome (or else I wouldn't be on my 3rd one), but are they so awesome that their ECUs can ultimately fix a trouble code it shouldn't be tripping? I'm glad its not misfiring now (for now at least), but it's kinda confusing at the same time. Any of you experience something like this?

    Last edited: Jul 12, 2011

    2K  2

    1996 Eagle Talon TSi AWD
    awd · manual · 2G DSM

    2K  3

    1995 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    2K  5

    1999 Mitsubishi Eclipse N/T
    automatic · 2G DSM
  2. joseph95

    joseph95 Probationary Member

    Joined Dec 6, 2009
    antioch, Tennessee
    no, but it could be a dirty injectior or bad gas
  3. bertrenolds

    bertrenolds Proven Member

    Joined Aug 21, 2010
    savage, Minnesota
    How will dsm link fix your idle? Sounds like you have a boost leak at the TB, have you rebuilt it at all and is it a 1g NT or 2g tb? Sounds to me more like idle surge or a bad IACV, have you done a boost leak test?

    390  0

    1991 Eagle Talon TSi
    · 1G DSM

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