Knocking is a phenomenon characterized by undesirable
vibration and noise that can cause engine damage. Two Knock Sensors (KS)
are installed inside the V-valley of the cylinder block to sense engine
knocking.
When knocking occurs, the vibration from the cylinder block is applied as pressure to the piezoelectric element.
When a knocking 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.
Field Effect Transistor (DATC) Repair procedures
Inspection
1.
Turn the ignition switch ON.
2.
Manually operate the control switch and measure the voltage of the blower motor.
3.
Operate the control switch to raise the voltage up to high ...
General Information
Towing
If the vehicle needs to be towed, call a professional towing
service. Never tow vehicle with just a rope or chain. It is very
dangerous.
[Front]
[Rear]
Emergency Towing
There are thr ...