4G1 engine
1. The purge air control solenoid valve has changed to a load sharing valve and the purge air inlet is no longer in front of the throttle but behind it. In addition, the purge air control solenoid valve has been changed to a valve with a larger capacity.
2. The attachment points of the exhaust gas recirculation system valve and the exhaust gas recirculation solenoid valve have been changed.
4G9 engine
3. The purge air control solenoid valve has been replaced with a larger capacity valve. In addition, the location of the vacuum tube has changed.
4. The color of the purge air control vacuum hoses has changed.
5. The location of the purge air control duct has changed.