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Motronic MAP sensor conversion

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    #16
    Originally posted by nando View Post
    the pressure waves in the intake manifold - at peak torque where the pulses are strongest, the MAP sensor picks these up and you see it as the pressure rising/falling dramatically within a short period of time. When the average pressure is much closer to atmospheric (assuming WOT).
    I see, so basically the ecu is going to see that and keep trying to correct the AFR..? Then having to process that signal to translate is going to make that "noise" worse..

    Anybody hook a MAP directly to the factory DME and use TunerPro or similar?
    -1988 BMW 325is - Sold
    -1991 BMW 535i - Parted out
    -1994 BMW 530i/5 - Sold
    -1970 Chevy C10/LWB
    -1973 Chevy C10/SWB stepside
    -1984 Chevy C10/LWB
    -2008 R56 MCS - Dead
    -2018 Toyota Tacoma TRD-OR DCLB

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      #17
      Okay, sorry to bring this back from the dead, but does anybody have any experience with a MAP sensor on the factory DME? My E30's going under the knife soon, and I would like to get the map conversion running before I start with the turbo setup.
      -1988 BMW 325is - Sold
      -1991 BMW 535i - Parted out
      -1994 BMW 530i/5 - Sold
      -1970 Chevy C10/LWB
      -1973 Chevy C10/SWB stepside
      -1984 Chevy C10/LWB
      -2008 R56 MCS - Dead
      -2018 Toyota Tacoma TRD-OR DCLB

      Comment


        #18
        i got mine idling on a GM 1 bar sensor.. not much else tho. problems when revved, didnt sound right so never even attempted to drive it. added a resistor/capacitor to try and smooth the signal out but ran the same after.

        might need something to convert the MAP signal to something the ECU can work with..

        Currently E30-less

        - EthosMotorsports.com

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