This manual pertains to the Toyota 1MZFE engine, a 3.0-liter V6 engine known for its robust design and liquid-cooled, forced lubrication systems. Featuring DOHC valve train and SFI fuel injection, this engine is engineered for reliable performance across various applications. Its comprehensive coverage in this service repair manual ensures that owners and technicians can understand and maintain its complex components, including emission control systems. The purpose of this English-language service repair manual is to provide detailed guidance for the maintenance, diagnosis, and repair of the Toyota 1MZFE engine. It covers essential areas such as engine mechanical systems, emission control, fuel and lubrication systems, and troubleshooting procedures. With extensive coverage of diagnostics and technical maintenance, this 599-page manual serves as an indispensable resource for ensuring the optimal performance and longevity of the engine.