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.
Snow tires
If you equip your car with snow tires, they should be the same size and have
the same load capacity as the original tires. Snow tires should be installed on
all four wheels; otherwise, poor handli ...
Anchor Pretensioner: Description and Operation
Description
Anchor pretensioner operates as well as belt Pretensioner at
the same time If it gets into its deploy condition after a collision. It
is located at near anchor on front seat and it ...