Check the valve clearance.
If necessary, adjust the valve clearance by replacing the tappets.
Other information:
Description
The In-car air temperature sensor is built in the heater & A/C control unit.
The sensor consists of a thermistor that measures the inside temperature. The
signal decided by the resistance value that changes in accordance with perceived
inside temperature, ...
Description
Electric E-CVVT system is electric continuous variable valve timing system.
It is located on the intake camshaft of the engine and uses motor rotation to
control the rotation angle of camshaft relative to the rotation of crankshaft
regardless of engine pressure. ...