Nira i7x - Lean Power Cut

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quickly, i.e. if spin
derivative is high, a higher
value than 100% is usually
to recommend.
100% is no correction.
Vh Tc Enable
True/False
Enable switch for Traction
Control
Vh Drive Wheel
Rear/front
Select if you have a rear or
front wheel driven car
Vh Tc Rpm Min
Value
Minimum rpm limit for
activating Traction Control
Vh Tc Tps Min
Value
Minimum throttle angle for
activating Traction Control
Vh Wheel
Circumference
Value
Tire circumference. Tire
diameter * pi for torque
transfer wheel
Vh Wheel Speed Input
Hall/CAN
Choose either CAN input
or wheel speed input (Hall
effect sensors).
6.11 Lean Power Cut
Lean Power Cut (LPC) is used to limit the engine load if three conditions are
meet. Then the conditions are meet the engine shuts down cylinders to limit
the power output. This reduces the load on the engine and might save the
engine for example if the boost pressure goes to high.
1. “Lpc Enable” should be set to true
2. “Engine speed” needs to be greater than “LPC RPM Min
3. “Bv Manifold Air Pressure” needs to be greater than LPC MAP Min
4. “Lambda 1 Lambda” needs to be greater than “LPC Lambda Max”
When all of the conditions are meet LPC is activated.