T100 SR5 Extra Cab Pickup 2WD V6-3.4L (5VZ-FE) (1997)
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Knock Sensor: Description and Operation
CIRCUIT DESCRIPTION
Knock sensors are fitted one each to the right bank and left bank of the cylinder block to detect engine knocking. This sensor contains a
piezoelectric element which generates a voltage when it becomes deformed, which occurs when the cylinder block vibrates due to knocking. If
engine knocking occurs, ignition timing is retarded to suppress it.
