| VERACRUZ(EN) >2007 > G 3.8 DOHC > Fuel System > Engine Control System > Knock Sensor (KS)>Repair procedures |
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FUNCTION AND OPERATION PRINCIPLE
Knocking is a phenomenon
characterized by undesirable vibration and noise and can cause engine
damage. Knock Sensor (KS) senses engine knocking and the two sensors are
installed inside the V-valley of the cylinder block. When knocking occurs,
the vibration from the cylinder block is applied as pressure to the
piezoelectric element. At this time, this sensor transfers the voltage
signal higher than the specified value to the PCM and the PCM retards the
ignition timing. If the knocking disappears after retarding the ignition
timing, the PCM will advance the ignition timing. This sequential control
can improve engine power, torque and fuel economy.
SPECIFICATION
SCHEMATIC DIAGRAM
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