Nitrous/Aux Parameters

These parameters allow the ECU to control the use of nitrous oxide, water/alcohol injection or to function as a general purpose auxiliary output.

Function

Selects the main function of the nitrous/aux output.

Input

Arming Input - specifies which ECU pin is used to arm the nitrous/aux output.

Invert input - reverses the state of the arming input.

Disable if check engine code - disables the output when there is a check engine code.

Disable on full throttle shift & launch control - disables the output when the full throttle shift rev limiter or launch control rev limiter is in operation.

Output

Output - specifies which ECU pin is used for the output.

Invert output - reverses the states of the output.

Conditions

All the conditions must be met in order for the output to be activated.

Engine speed - specifies the minimum and maximum rpm.

Engine load - specifies the minimum and maximum engine load.

Throttle - specifies the minimum throttle opening.

Vehicle speed - specifies the minimum and maximum vehicle speed.  Note that setting the maximum speed to 255 kph (158.45 mph) disabled the maximum speed test.

Air temperature - specifies the minimum intake air temperature.

Water temperature - specifies the minimum and maximum coolant temperatures.

Note that not all these conditions will be available, depending on the function selected.

Fuel & Ignition

The above example will remove fuel and retard the ignition timing by 4 degrees when activated.

Output Control - specifies which ECU pin controls the nitrous solenoid. Important: the ECU cannot sink enough current directly to control a solenoid. A relay must be used between the ECU and solenoid to prevent damage to the ECU.

Conditions - specifies the conditions which must be met before the output is switched on.

Fuel & Ignition - specifies changes to fuel and ignition when nitrous is activated.

The maximum retard is 40 degrees, and the ignition timing can be retard to a maximum of 10 degrees BTDC.

Do not make nitrous changes without using a wideband lambda meter to determine the correct air/fuel ratio. As a general guide, the following extra fuel is necessary:

With nitrous control it is possible to remove fuel and/or advance ignition timing by using negative values. This is useful when using water/alcohol injection.