Knock Control Setup

Tuning Knock Control

Tuning -> Engine Functions -> Knock Control -> Knock Control Setup

Knock Control Setup

Knock Gain - Gain added to knock signal (can multiply)
Knock Mode - 0 = Global 1 = Individual (allows ECU to detect per cyl)
Short Term Retard Gain - Retard for each percentage over the knock threshold
Short Term Advance Rate - Rate at which timing is reintroduced when Short Term Retard is 0
Short Term Retard Limit - Maximum Short Term Retard that can be applied
Long Term Retard Gain - Long Term Retard applied based on Short Term Retard
Long Term Advance Rate - Rate at which timing is reintroduced to Long Term Trim when Short Term Retard is 0
Long Term Retard Limit - Maximum Long Term Retard that can be applied
Knock Window Start Angle - Point at which ECU will start to sample the Knock Signal
Knock Window Angle - The length in degrees in which the ECU will sample the Knock Signal

** Knock Window Angle must be less than the angle between TDCs

<90 degrees V8

<60 degrees V12

Knock Lockouts

RPM Lo Lockout - Knock Control will be OFF below this RPM
RPM Hi Lockout - Knock Control will be OFF above this RPM
Post Start Delay - Delay in which Closed Loop Knock detection is active
TP Lockout - Minimum Throttle Position before Knock detection is active
dTP Lockout - Maximum Throttle Rate of Change in which Knock detection can become active
dMAP Lockout - Maximum Manifold Pressure Rate of Change in which Knock detection can become active
User Lockout - Allows user to create custom lockout channel

Knock Channel Cylinder

Select the appropriate Knock Channel (Knock Sensor) for each cylinder

Example - 6 cylinder with two knock inputs

Knock Threshold Table

Table in which the maximum allowable measured Knock Level is allowed

Knock Threshold Cyl Gain Table

Used to multiply the signal gain per cylinder

** The X-Axis MUST be set to the Cylinder Numbers

Knock Level Cyl Gain Table

Used to multiple the knock level per cylinder

** The X-Axis MUST be set to the Cylinder Numbers