| Description |


Description Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine modifications and the addition of special control components.
Description Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load.
Replacement 1. Remove the heater unit assembly. (Refer to Heater - "Heater Unit") 2. Loosen the mounting screws and remove the heater core cover (A). 3.