Main Limiter

Main Limiter

Main Limiter

The Main Limiter is used to prevent engine damage by shutting down injection or ignition outputs at a set engine speed.



Main RPM Limiter

Cut Method - Select with Cut Method to use from the options below.
Injection - Injector outputs will be disabled to limit the engine speed.
Ignition - Ignition outputs will be disabled to limit engine speed.

Cut Type - Select how the RPM Limiter is to be applied.
Hard Cut - All fuel or ignition outputs will use normal operation below the End RPM, and will disable above the End RPM.
Soft Cut - The ECU will use an algorithm to randomly cut individual injection or ignition outputs to maintain engine speed at or below the End RPM.

Hysteresis - Available only when the Cut Type is set to Hard Cut. The engine speed must fall this amount below the End RPM before injection or ignition is re-enabled.

New Name

Purpose

RPM Limiting Function
If the ECU is currently enforcing an RPM limit, this shows which function is responsible.
RPM Limiting Method
If the ECU is currently enforcing an RPM limit, this shows what method is being used to limit the RPM. Otherwise displays None.
RPM Limiter Active
If the ECU is currently enforcing an RPM limit, this shows Active (value 1). Otherwise it shows Inactive.
Cut Percentage Function
If the ECU is currently enacting a cut percentage, this shows which function is responsible. Otherwise displays None.
Cut Percentage Method
If the ECU is currently enacting a cut percentage, this shows what method is being used to limit the RPM. Otherwise displays None.
Cut Percentage
The current cut percentage being output. Usually 0%
Engine Limiting Function
If RPM Limiting Function is not None, it displays that. Otherwise, if Cut Percentage Function is not None, it displays that. Otherwise displays None.
Engine Limiting Method
If RPM Limiting Function is not None, it displays RPM Limiting Method. Otherwise, if Cut Percentage Function is not None, it displays Cut Percentage Method Otherwise displays None.
Engine Limiter Active
If RPM Limiter Active, displays RPM limit Otherwise, if Cut Percentage is greater than 0, displays % Cut Otherwise displays None.


Engine Limiting Function

The Engine Limiting Function channel displays the function/error that is causing the engine to apply a limit, may it be the RPM Limiter function, or another function. Possible channel displays are:

      • No limiter

      • Immobilizer

      • map ver error

      • etc error

      • etc redundancy error

      • decel cut

      • over boost cut

      • ignition switch

      • anti flood

      • limp mode

      • rotational idle

      • launch control

      • torque reduction

      • flat shift

      • aux limiter

      • main limiter

      • speed limiter

      • supervisor error

      • turbo timer

      • eng protection

      • flood clear

      • dtc error

      • lpg limiter

      • kill switch function

      • traction control

      • rolling alag

      • driveshaft rpm ctrl

      • trans_brake

      • inj_sys_errors

      • feature_control_error

      • inj_sys_disable

      • torque_model

      • start_button

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