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  1. 9

    ECU swap causes idle problems?

    I don't remember what the junker car was. I have a manual trans, and after swapping the other ecu back in, the car operates just fine. For some reason the ecu pulled from the yard just doesn't want to operate the idle/low rpm circuit properly. I'm not sure if it's getting out of startup mode...
  2. 9

    ECU swap causes idle problems?

    Currently chasing a gremlin that causes intermittent tachometer operation. In this interest, I grabbed a spare ECU out of a junkyard car. It was the same as mine, 2.3 dual plug. After the swap, the idle was very strange. surged between 450-950. almost had the 'cam' effect. very heavy fueling...
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