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| VersaTune VersaTuner tuning software by VersaTune. Available for Mazdaspeed3, Mazda 3 MPS, Mazdaspeed Axela, Mazdaspeed6, Mazda 6 MPS, Mazdaspeed Atenza. Includes ECU reflashing/remapping, online tune database, custom tune editing ability, virtual dashboard, data logging, diagnostics/DTC code management, Launch Control, No Lift Shift, and stutter-free Smooth Shifting. |
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03-02-2015, 12:51 AM
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   Join Date: Nov 2008 Location: Tucson, AZ
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(Thread Starter) |   Not Ranked : 0 score  VersaTune Lambda translations for ATR map conversion Since the ECU reads values in Lambda and displays/targets gas AFRs, use the following infos to convert from ATR to VT; For example, if you target 11.75 AFR in ATR, you'd target .8 Lambda in VT. Here's some common selections: Code: Lambda | Gas AFR 1.09 | 16.008 1.055 | 15.509 1.021 | 15.009 1.0 | 14.7 .987 | 14.509 .953 | 14.009 .919 | 13.509 .885 | 13.01 .851 | 12.51 .817 | 12.01 .8 | 11.76 .783 | 11.51 .766 | 11.26 .749 | 11.01 Here's how to do the math yourself for uncommon selections: Lambda -> AFR (L * 14.7) AFR -> Lambda (AFR / 14.7) Mfinlay04 likes this.
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