Target Lambda

Target Lambda



The Target Lambda table serves as a major part of the fuel delivery calculation in your Nexus ECU. It maps out the resultant mixture you want the engine to run at under various load and RPM points and is used in both open loop and closed loop fueling. 

It is very important to map this table out as part of your fuel tuning process, as once the base VE table has been tuned, lambda changes can be made directly in this table without adjusting the base VE table.

Values shown in this table will be displayed in the unit specified in Preferences > Unit Options > AFR.


    • Related Articles

    • Lambda Air Temp Correction

      Axis selection and changing values This table is intended to be used with Inlet Air Temperature set as the first/x (left to right) axis, and Manifold Pressure as the second/y (bottom to top) axis, though both axis are user configurable to use any ECU ...
    • Lambda Coolant Temp Correction

      Axis selection and changing values This table is intended to be used with Coolant Temperature set as the first/x (left to right) axis, and Manifold Pressure as the second/y (bottom to top) axis, though both axis are user configurable to use any ECU ...
    • Ignition Timing VS Air to Fuel Ratio

      In this article, we are going to shed some light on the hotly discussed topic of how and why the air-fuel ratio and ignition timing affect horsepower. And this is how we’re going to do it… First, we are going to need some hard data. Using our test ...
    • Lambda Corrections

      Various target lambda corrections can be enabled as a correction to the main Target Lambda table output. A Generic Correction and Fuel Composition Correction can be enabled from this node. Once enabled they will appear in the Lambda Corrections tree ...
    • Target AFR Correction

      Target AFR Correction Table This table is only active if enabled in the Nitrous Controller node. This table applies a correction to the target air to fuel ratio (AFR) when this nitrous stage stage is active. This is NOT the new AFR but a correction ...