OUTLINE
The intake manifold is made from plastic to reduce the weight and the amount of heat transferred from the cylinder head sub-assembly. As a result, it has become possible to reduce the intake air temperature and improve the intake volumetric efficiency.
A linkless type throttle body assembly is used to achieve excellent throttle control.
An Electronic Throttle Control System-intelligent (ETCS-i) is used to provide excellent throttle control. For details, see 1ZR-FAE Engine Control Click here.
An Acoustic Control Induction System (ACIS) is used to improve the engine performance. For details, see 1ZR-FAE Engine Control Click here.