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Thread: M157/M278 Fuel Tuning (speed density)

  1. #1

    M157/M278 Fuel Tuning (speed density)

    Can anyone offer some direction on fuel tuning for these biturbo cars, as there's no MAF?

    Injector Slope will scale all fueling, but how can we do finer tuning in specific areas?

  2. #2
    Advanced Tuner outlaw_50's Avatar
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    Fuel -> Temp Control -> Target Lambda

  3. #3
    Quote Originally Posted by outlaw_50 View Post
    Fuel -> Temp Control -> Target Lambda
    I should have been more specific - I'm looking to fine-tune fuel trims in specific areas without changing the target lambda.

  4. #4
    Advanced Tuner outlaw_50's Avatar
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    Quote Originally Posted by Schnell View Post
    I should have been more specific - I'm looking to fine-tune fuel trims in specific areas without changing the target lambda.
    1- Fuel System -> Fuel Pump
    2- Fuel System -> Fuel Pressure
    3- Engine -> Fuel -> Inj Pulse
    4- Engine -> Fuel -> Max inj
    5- If your looking to fine tune (Closed Loop) , Engine -> Fuel -> Oxygen Sensors -> Sensor Bias

  5. #5
    Quote Originally Posted by outlaw_50 View Post
    1- Fuel System -> Fuel Pump
    2- Fuel System -> Fuel Pressure
    3- Engine -> Fuel -> Inj Pulse
    4- Engine -> Fuel -> Max inj
    5- If your looking to fine tune (Closed Loop) , Engine -> Fuel -> Oxygen Sensors -> Sensor Bias
    Thank you