The author introduces the integerated electronic control system of 2RZ-E engine on bus FOTON VIEW and its related component structure,working principle, fault codes diagnosis and clearing;emphasizes on its exhaust gas recirculation system and key points of its fault diagnosis and maintenance.

The experiment results are Presented which are obtained from the tests of an electronic controlled fuel injection stoichiometric gasoline engine by using cold exhaust gas recirculation (EGR) and higher compression ratio to improve fuel economy and reduce emissions.