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TCU needed

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    #1

    TCU needed

    I just recently got a 91 accord and my tcu is shot. im gunna go to a junkyard and try to find one that is in good shape. What TCUs can i use? and are any better than others as far as performance?
    Tags: tcu, tranny, transmission
    #2
    You need to get one out of any 90-91 auto accord.

    Thats the only one.

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      #3
      Yea, i got that. I mean which specific ones. and can i not use the p12 out of the prelude?

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        #4
        Simply put, the tcu controls the tranny. The P12 is an ecu that controls the engine.

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          #5
          Your car has the Sport option, which is controled by the TCU. You need a 90-91 TCU for things to function properly. This feature was discontinued for the 92 model.

          A TCU from any 4th or 5th generation Accord or Prelude, maybe even the 6th generation Accord, would most likely work... but not 100%. Just get the correct one. You won't get any "performance upgrades" from a TCU. All a sportier TCU will do is shift later, causing you to get worse gas mileage and put more strain on the transmission.






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