Dorman 977-033 Throttle Position Sensor

Overview of Dorman Throttle Position Sensor 977-033

The Dorman 977-033 throttle position sensor is designed for precise throttle body monitoring in select BMW models. Engineered with durable plastic housing and a black finish, this sensor ensures reliable performance for your BMW M3, M5, or Z4.

• Constructed from durable plastic material for longevity
• Throttle body mounted design for direct installation
• Three-pin terminal type with female electrical connection
• Non-adjustable sensor for consistent throttle position readings
• Includes one throttle position sensor and one o-ring for proper sealing

Detailed Product Description

The Dorman 977-033 throttle position sensor is specifically designed to mount directly on the throttle body of BMW M3, M5, and Z4 vehicles. Its plastic construction provides a lightweight yet durable solution, while the black finish complements the engine bay aesthetics. Featuring a three-terminal pin configuration with a female electrical connection, this sensor accurately communicates throttle position data to the engine control unit (ECU). The non-adjustable design ensures consistent and reliable throttle response without the need for manual calibration. Included in the package is an o-ring to maintain a secure and leak-free installation.

Common Applications and Problem Resolution

• Helps resolve erratic idle or stalling issues related to throttle position feedback
• Addresses poor acceleration or hesitation caused by faulty sensor signals
• Corrects throttle position sensor error codes in BMW M3, M5, and Z4 models
• Improves engine performance by providing accurate throttle input data
• Supports smooth transmission shifting by maintaining proper throttle input readings

Installation Notes and Tips

When installing the Dorman 977-033 throttle position sensor, ensure the throttle body surface is clean and free of debris. Properly seat the included o-ring to prevent air leaks that could affect sensor readings. Use the existing mounting points on the throttle body for a secure fit. Verify the electrical connector is fully engaged to maintain a stable connection. No adjustment is necessary after installation, as the sensor is factory calibrated.

Quality Assurance and Warranty

Dorman manufactures the 977-033 throttle position sensor to meet or exceed OEM specifications for fit, form, and function. Each sensor undergoes rigorous testing to ensure reliable operation under normal driving conditions. This part is backed by Dorman's limited warranty, providing coverage against defects in materials and workmanship for a specified period.