Knocking is a phenomenon characterized by undesirable vibration and noise and can cause engine damage. Knock Sensor (KS) is installed on the cylinder block and senses engine knocking.

When knocking occurs, the vibration from the cylinder block is applied as pressure to the piezoelectric element. When a knock occurs, the sensor produces voltage signal. The ECM retards the ignition timing when knocking occurs. If the knocking disappears after retarding the ignition timing, the ECM will advance the ignition timing. This sequential control can improve engine power, torque and fuel economy.

Camshaft Position Sensor (CMPS). Repair procedures

Inspection 1. Check the signal waveform of the CMPS and CKPS using the GDS. Specification: Refer to “Wave Form” ...

Knock Sensor (KS). Specifications

Specification Item Specification Capacitance (pF) 850 ~ 1,150 ...

See also:

Engine Room Under Cover Repair procedures
Removal and Installation 1. Loosen the mounting clip and bolt and then remove the under cover (A). Tightening torque: 7.8 ~ 11.7N.m (0.8 ~1.2kgf.m, 5.7 ~ 8.6 lb-ft) 2. Install in the rev ...

Transaxle Oil Temperature Sensor. Specifications
Specification Item Specification Type Negative Thermal Coefficient Type Operation temperature -40~165°C [-40~329°F] ...

Schematic Diagrams
Schematic Diagram ...