Dorman 977-079 Fuel Injection Throttle Body

Overview of Dorman Fuel Injection Throttle Body 977-079

The Dorman 977-079 Fuel Injection Throttle Body is designed for precise airflow control in gas fuel systems. Engineered for compatibility with Scion 86, Subaru BRZ, and Toyota FR-S models, this electronic throttle body ensures reliable throttle response and efficient fuel delivery.

• Compatible with Scion 86, Subaru BRZ, and Toyota FR-S
• Electronic throttle body with integrated throttle position sensor
• Aluminum housing with natural silver finish for durability
• 2.56-inch inlet and outlet diameter with flanged inlet
• Blade-type electrical connector with 6 terminals
• Airflow rate of 130 CFM for optimized engine performance

Technical Specifications and Features

The Dorman 977-079 throttle body features a 2.56-inch bore diameter and matching inlet and outlet diameters, designed to maintain consistent airflow in gas fuel injection systems. Its aluminum and PBT housing provides strength and heat resistance, while the natural silver finish offers corrosion resistance. This electronic throttle body includes a throttle position sensor and uses a blade-type male electrical connector with six terminals for secure and accurate signal transmission. The unit is non-adjustable and does not include mounting hardware, gaskets, or fuel injectors, making it ideal for direct replacement applications.

Applications and Problem Resolution

This throttle body is specifically compatible with the Scion 86, Subaru BRZ, and Toyota FR-S, ensuring proper fit and function. It addresses common issues such as:

• Erratic idle or stalling due to faulty throttle body operation
• Poor throttle response or hesitation during acceleration
• Check engine light triggered by throttle position sensor faults
• Reduced engine performance caused by airflow inconsistencies
• Throttle body wear or damage from prolonged use

Installation Notes and Tips

Installation of the Dorman 977-079 throttle body requires removal of the existing unit and replacement with this direct-fit component. Note that mounting hardware and gaskets are not included, so reuse existing parts or acquire new ones as needed. Ensure electrical connections are secure, particularly the six-terminal blade connector, to maintain proper sensor communication. Calibration or relearn procedures may be necessary after installation to optimize throttle response.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 977-079 throttle body undergoes rigorous quality control to ensure durability and reliable performance in gas fuel injection systems. While specific warranty details should be confirmed at the point of purchase, Dorman typically offers limited warranties covering defects in materials and workmanship.