Difference ECUs 89661-50241 and 89661-50240

Discussion in 'Fuel, Ignition, Air, & Tuning (FIAT) (Members On' started by melvinmelvin, Dec 19, 2015.

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  1. melvinmelvin

    melvinmelvin Member

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    When I first got my 1UZ it had ECU 50241.

    Since then I have screwed up 3 ECUs.

    Could not get hold of 50241 used 50240 in stead, to me seems the engine
    is running just fine with 50240.

    Although, I wonder if somebody knows the difference between the two.
     
  2. gloverman

    gloverman Active Member

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    The last number on the toyota part number is the supercession number. So the 241 is a later replacement for the 240. They should interchange without any issues.
     
  3. melvinmelvin

    melvinmelvin Member

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    thanks a lot. ta.
     
  4. EyesofThunder

    EyesofThunder New Member

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    What happened to your ECU's? I fix GM ECM/PCM's, I could take a crack at it if they are sitting collecting dust.
     
  5. melvinmelvin

    melvinmelvin Member

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    Collecting dust they are.

    I have my 1UZ in a boat, the boat sunk, twice.
    The ECUs didn't work after that, no surprise really.

    One ECU sat on a shelf for 6 weeks, while I was out of the country, hauled the engine before I left.
    When firing up again after returning the ECU works but only for 7 cylinders.
     

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