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OBC fuel consumption change?

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    OBC fuel consumption change?

    I have a factory tuned dme with larger 65lb injectors, now the obc is reporting higher mpgs as expected.

    Is it possible to change a correction factor somewhere to get the obc mpg to be more accurate?

    Would this be in the dme or the cluster?

    #2
    I *think* you can edit K_KVA_NORM (It's a multiplier with formula x/128, higher would mean more fuel consumption I believe). Stock value is 1.03125, maxes out at 1.99. Assuming the stock injectors are 24 lb, that would imply the largest injector your could correct the readings for would be ~46 lb (without doing a program modification that is).

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      #3
      thanks Terra for the information even if it doesn't allow adjustment for anything past 46lbs injectors, its still better and closer than what im getting now.

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        #4
        Untested, but theoretically if you change 0xA8830 from 12 39 00 08 8B E8 to 36 39 00 08 8B E7, and then change 0xBE7 (0x88BE7) from 00 84 to 01 65, that should do the trick for 65 lb injectors (again, this is assuming the stock S54 injectors are 24 lbs).

        Assuming we're talking about the CSL

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          #5
          Originally posted by terra View Post
          Untested, but theoretically if you change 0xA8830 from 12 39 00 08 8B E8 to 36 39 00 08 8B E7, and then change 0xBE7 (0x88BE7) from 00 84 to 01 65, that should do the trick for 65 lb injectors (again, this is assuming the stock S54 injectors are 24 lbs).

          Assuming we're talking about the CSL
          i'm not using the CSL tune software, my turbo tune is on a stock MSS54HP DME based on the 211323002701-J469 tune file

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            #6
            Try this
            0xA80F6: 12 39 00 08 8C 12 to 36 39 00 08 8C 11
            0xC11 / 0x88C11: 00 84 to 01 65

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              #7
              Originally posted by terra View Post
              Try this
              0xA80F6: 12 39 00 08 8C 12 to 36 39 00 08 8C 11
              0xC11 / 0x88C11: 00 84 to 01 65
              Wonderful thanks a lot, ill take a look at it soon.

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