The 2AZ-FE, in-line, four-cylinder, 2.4 liter displacement, DOHC, 16 valves, is based on the current Previa 2AZ-FE engine.
These engines have been optimized for performance, fuel efficiency and exhaust emission reduction and feature the following features:
- equipped with a PS starter with integrated planetary gear;
- meets the requirements of European standards STEP III;
- equipped with an intelligent electric throttle control system ETCS-i;
- equipped with an intelligent valve timing system VVT-i;
- equipped with an intake manifold with channels of increased diameter and length;
- equipped with a balance shaft.
Pic. 2.1. Transverse and longitudinal sections of the engine model 1AZ-FE
Pic. 2.2. The moment of opening or closing the valve of engines model 1AZ-FE
Pic. 2.3. The moment of opening or closing the valve of engines model 2AZ-FE