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p12 ecu

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    #1

    p12 ecu

    i installed a p12 in my 92lx and now my car gets stuck in gears
    Tags: None
    #2
    I have no idea what that means.
    wat?

    Comment

      #3
      Do you have a 5 speed or an automatic? If it's an auto, check the plugs for your tcu. If it's a five speed, I can't imagine that it's related to the ECU.

      Comment

        #4
        That's what I was going to say, I wouldn't think the ecu would have anything to do with the gears, either way.

        Comment

          #5
          I don't have any experience with the auto, but since the xCUs are next to each other, the only thing I can think is something happened during the swap. Maybe the plugs wiggled out or one of the wires popped out of the harness.

          Comment

            #6
            The ECU shouldn't have any effect on the TCU...

            However, just in case... did the P12 come from an automatic or manual Prelude?

            I assume your car is automatic... as this makes no sense if it's manual.






            Comment

              #7
              My car seemed like it shifted slightly higher and harder after my P12 install. No idea why. Mine is a 93 auto. It shifts fine, though. I THINK my ECU is from a manual. (Don't quote me on that, I'll have to check.)

              It's possible that there's a malfunctioning TPS circuit on the ECU, and that'd have a slight effect on the shift points of the TCU. The detent (kickdown) cable has the most influence, but shift points/firmness are also determined electronically.
              MRT(vvv) --Stock CB7 Enthusiast #1--

              Vouches: new_beginnings, ThrakBarts, beanzfynest617, JaK FRoSTWhiTE, 92_EX_Ninja, mak
              Originally posted by deevergote
              i am with the dumb. i cannot brain.

              Comment

                #8
                I wonder if the Prelude shift points are different... the Prelude S TCU might be something to consider as well!


                Sucks I haven't had an F22A1 in my car for nearly 6 years now... it doesn't really apply to me.






                Comment

                  #9
                  Well i have been running my 93 auto for a while now with -12 and have not had this problem. So I suggest pulling the ecu/tcu fuse, and checking the install one more time.

                  Comment

                    #10
                    like the car stutters its auto and the check engine light stays on

                    Comment

                      #11
                      Sounds like an electrical issue, unfortunately. Make sure all the connections are there/snug, and if everything looks good, you might have a bad ECU on your hands, though I hope not.
                      MRT(vvv) --Stock CB7 Enthusiast #1--

                      Vouches: new_beginnings, ThrakBarts, beanzfynest617, JaK FRoSTWhiTE, 92_EX_Ninja, mak
                      Originally posted by deevergote
                      i am with the dumb. i cannot brain.

                      Comment

                        #12
                        what codes? pls check them before you pull it might help in future diagnostics
                        96 Accord SiR driveline installed. CF2 donar

                        Comment

                          #13
                          a little off topic but

                          what year preludes have the p12 ecu?

                          PSN: DJ-dlatino
                          My ride
                          http://www.cb7tuner.com/vbb/showthread.php?t=140370

                          Comment

                            #14
                            92-95 prelude SINGLE CAM (f22)
                            Originally posted by deevergote
                            Just do what PR CB7 said.

                            "I'm Going For Wood" (Clickey Clickey)

                            Comment

                              #15
                              mine would redline about 200 rpm higher then it did with the pt3.and it shifter a little harder as well.but it shifted fine after the install..pull codes.

                              spoonsportsaddict

                              Comment

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