User Scalars are used to convert internal raw values into a meaningful physical unit, with the option of further changing the units to something more familiar / convenient - see Units.
Adjustable scalars make it possible to make full use of the ECU’s internal resolution and range.
The fuel pressure scalar is used to convert the raw fuel pressure values into more meaningful physical units.
By default, the fuel pressure scalar is calibrated to units of Bar, but this can be changed to other units of pressure - see Units.
| Option | Description |
|---|---|
 Fuel Pressure Scalar |
Multiplier, m as in the linear scaling equation, y = mx + c. |
| Fuel Pressure Offset |
Offset c as in the linear scaling equation, y = mx + c. |
The load scalar is used to convert the raw ’load’ values into more meaningful physical units.
Typically, Load values are pressure readings calibrated to units of kPa, but this can be changed to other units of pressure (or other quantities) - see Units.
Note that changing the load scalar will affect the meaning of any related calibration values and measurements collectively, which may require recalibration of the ECU.
For example, if using MAP as Load and the MAP sensor is changed to one with a different range, then all load related items may require recalibration if the scaling of raw MAP readings no longer leads to equivalent physical pressure values.
The Load scalar uses the same multiplier and offset as the MAF (Load) Scalar.
| Option | Description |
|---|---|
| Load Scalar |
Multiplier, m as in the linear scaling equation, y = mx + c. |
| Load Offset |
Offset c as in the linear scaling equation, y = mx + c. |
The Mass Air Flow (MAF) scalar is used to convert raw flow measurement values into more meaningful physical units.
By default, the MAF scalar is calibrated to g/s, but this can be changed to other units of mass flow.
The MAF (Load) scalar uses the same multiplier and offset as the Load Scalar.
| Option | Description |
|---|---|
| Load Scalar |
Multiplier, m as in the linear scaling equation, y = mx + c. |
| Load Offset |
Offset c as in the linear scaling equation, y = mx + c. |
The Mass Air Flow (MAF) scalar is used to convert raw flow measurement values into more meaningful physical units.
By default, the MAF scalar is calibrated to g/s, but this can be changed to other units of mass flow.
| Option | Description |
|---|---|
| MAF Scalar |
Multiplier, m as in the linear scaling equation, y = mx + c. |
| MAF Offset |
Offset c as in the linear scaling equation, y = mx + c. |