ISO 33920-56B40 ECU, Mine's FUBAR. Anyone have one? - Suzuki Forums: Suzuki Forum Site
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Old 01-19-2018, 06:30 PM   #1 (permalink)
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Default ISO 33920-56B40 ECU, Mine's FUBAR. Anyone have one?

My buddy just bought a 1993 sidekick and the ECU is pretty close to beyond repair (holes in the PCB, many traces totally gone). I rebuilt it regardless and it now outputs code 12, but it seems the injector driver circuit is FUBAR -- there are no injector pulse or the 2-3 volts at the EUC even after cap replacement and rebuilding the damaged traces. If I can't find one in the next week or so, I'll attempt to replace the injector transistor(s) and refresh the associated solder connections but I honestly don't trust that board to not have issues.

I don't care if the ECU is rebuilt or has leaking caps, whatever you have. I can rebuild them, so I'll take it. PM me!
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1996 Tracker 4x4, 2 door, 16v, 3 sp auto, 107k - 25.9 mpg
2005 Volvo S40 T5 AWD, 69K - 26.0 mpg
1987 Mercedes-Benz 300D turbodiesel, 4 sp auto, 152k - 27.9 mpg

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Old 01-19-2018, 09:36 PM   #2 (permalink)
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How about the ebay places that you send yours in and they rebuild it for $75. Wonder where they are getting their boards??
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Old 01-20-2018, 02:23 PM   #3 (permalink)
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Mine is beyond repair. I found a core, so hopefully this is a moot point when it arrives.
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1993 Tracker 4x4, 2 door, 8v, 3 sp auto, 135k - 24.3 mpg
1996 Tracker 4x4, 2 door, 16v, 3 sp auto, 107k - 25.9 mpg
2005 Volvo S40 T5 AWD, 69K - 26.0 mpg
1987 Mercedes-Benz 300D turbodiesel, 4 sp auto, 152k - 27.9 mpg

WARNING: this post contains thoughts that may at any point be discovered by the state of California to cause cancer.
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