This manual covers the Toyota 1AZ-FSE engine, an Inline-4, DOHC, 16-valve unit with a displacement of 1998 cc. Featuring Direct Injection (D-4) fuel system and a turbocharger, this engine is engineered for efficient performance, delivering approximately 150 PS and 190 Nm of torque. Its robust construction and advanced technology contribute to its reputation for reliability. This comprehensive Service Repair Manual in English provides detailed information essential for maintaining and repairing the 1AZ-FSE engine. It includes in-depth repair procedures, diagnostic troubleshooting guidance, and specific instructions for maintenance and component installation. This manual serves as a critical resource for owners, technicians, and mechanics to ensure the optimal performance and longevity of the engine.