GM > Engine > Spark Control > Knock Sensors
Knock Sensor Tip In
- Min TPS: Minimum TPS for use of the Knock Sensor Level vs. Tip in TPS table.
- Max TPS: Maximum TPS for use of the Knock Sensor Level vs. Tip in TPS table.
- TPS Delta: Minimum %TPS must continually increase for use of the Knock Sensor Level vs. Tip in TPS table.
- Min RPM: Minimum RPM for use of the Knock Sensor Level vs. Tip in RPM table.
- Max RPM: Maximum RPM for use of the Knock Sensor Level vs. Tip in RPM table.
- RPM Delta: Minimum %RPM must continually increase for use of the Knock Sensor Level vs. Tip in RPM table.
Knock Sensor Level (One of three will be selected depending on Table select values)
- Knock Sensor Level vs. Tip in TPS: Used to increase, decrease Knock Sensor sensitivity during throttle transitions. Knock sensor level that must be exceeded to consider the engine knocking. The knock sensor is compared against this tables levels, and if found to be below the table result, no knock retard can occur. This table is used during rapid throttle transitions. Knock energy table level is from 0 to 64.
- Knock Sensor Level vs. Tip in RPM: Used to increase, decrease Knock Sensor sensitivity during RPM transitions. Knock sensor level that must be exceeded to consider the engine knocking. The knock sensor is compared against this tables levels, and if found to be below the table result, no knock retard can occur. This table is used during rapid rpm transitions. Knock energy table level is from 0 to 64.
- Knock Sensor Level vs. RPM vs. Cyl: Used to increase, decrease Knock Sensor sensitivity per cylinder. Knock sensor level that must be exceeded to consider the engine knocking. The knock sensor is compared against this tables levels based on current cylinder firing. If found to be below the table result, no knock retard can occur. It is the base knock sensor table when the TPS and RPM tip in tables are not in use. Knock energy table level is from 0 to 64.
Knock Sensor Global
- Knock Sensor Global vs. RPM vs. MAP: Used to increase, decrease Knock Sensor sensitivity. Depending on model, a global load based gain for the Knock Sensor Level vs. Tip in TPS, Knock Sensor Level vs. Tip in RPM, Knock Sensor Level vs. RPM vs. Cyl tables. Multiplier value range is from 0 to 16. The Higher this value the more desensitized the sensor will become.
- Knock Sensor Global vs. MAP vs. Cyl: Used to increase, decrease Knock Sensor sensitivity. Depending on model, a global load based gain for the Knock Sensor Level vs. Tip in TPS, Knock Sensor Level vs. Tip in RPM, Knock Sensor Level vs. RPM vs. Cyl tables. Multiplier value range is from 0 to 16. The Higher this value the more desensitized the sensor will become.