Results 1 to 5 of 5

Thread: M157/M278 Fuel Tuning (speed density)

  1. #1
    Tuner in Training
    Join Date
    Nov 2018
    Posts
    19

    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
    Tuner in Training outlaw_50's Avatar
    Join Date
    Nov 2020
    Location
    United Arab Emirates, AlAin
    Posts
    33
    Fuel -> Temp Control -> Target Lambda

  3. #3
    Tuner in Training
    Join Date
    Nov 2018
    Posts
    19
    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
    Tuner in Training outlaw_50's Avatar
    Join Date
    Nov 2020
    Location
    United Arab Emirates, AlAin
    Posts
    33
    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
    Tuner in Training
    Join Date
    Nov 2018
    Posts
    19
    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