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ECU differences

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    #1

    ECU differences

    I wanted to start this thread hopefully people will learn from it. I also want to know the differences between each f22 models ecu. Ex. F22a4 compared to the f22a6. I do know that the a6 fuel mapping is different due to the different cams. Could there be benefits from swapping ecu? Thank you
    Tags: None
    #2
    It's been covered on here before A few times in detail


    http://www.cb7tuner.com/vbb/showthre...erences&page=2

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      #3
      F22A6 has a different fuel map to take advantage of the different camshaft, intake manifold, and possibly exhaust manifold. Those are the major differences.
      The A6 intake manifold has an IAB system. Dual runners. The PT6 ECU controls the valves in this system. The PT3 and P12 do not.

      The PT3 ECU is the Accord f22a1 and f22a4 ecu. It is the same for both engines (aside from the exhaust manifold, the engines are identical). The P12 ECU is the Prelude f22a1 ECU. Good for 10hp over the PT3.

      There is no benefit to using a PT6 on an F22A1/4 without the other F22A6 parts (cam and intake mani especially). Likewise, there are no gains to be had from a PT3 or P12 on an A6.






      Comment

        #4
        If you have an F22A1 motor the P12 ECU from a Prelude is well worth it. It is a more performance oriented map for the exact same engine. We put it in our race car and could feel a seat of the pants difference and we started passing more cars. Get one from a junkyard for less than $100.
        ==========================
        1991 Accord Lemons Race Car, "The Minnow" RIP
        1993 Accord Lemons Race Car, "SpaceEx Starship"
        Neuspeed Race Springs, Koni Sports, Acura CL Rear Sway Bar,
        Adj Upper Control Arms -3.0deg front, -2.0 deg rear
        M2A4 Trans, Cusco 1-way Limited Slip Differential, Stage 2 Clutch and 11lb flywheel. A4 Header, 2" exhaust all the way back, catalyst delete, delta 262 grind, glasspack muffler, PT6 ECU.
        Acura CL3.0 Brakes Front and Rear, Raybestos St43 Pads, Redline 600 Brake Fluid

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