Bosch 12202 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Geo, Toyota Celica, Corolla, and Prizm

The Bosch Engineered Oxygen Sensor 12202 is designed to provide accurate air-fuel mixture readings for specific vehicle models including Geo and Toyota Celica, Corolla, and Prizm. This narrow-band, non-heated oxygen sensor ensures proper emission control and engine performance.

• Specific fit for Geo and Toyota Celica, Corolla, and Prizm models
• Standard replacement grade for reliable performance
• 17.2-inch wiring harness length with included harness
• Blade terminal type with 2 male terminals and rectangular connector shape
• Flange mounting type with 18 mm thread diameter and 22 mm hex size
• Metal housing with steel finish for durability
• Narrow-band, non-heated sensor type
• Overall length of 20.9 inches and sealing surface to connector length of 19.7 inches

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering precise sensor technology tailored to specific vehicle applications. This part number 12202 is engineered to meet OEM specifications for emission control sensors, ensuring compatibility and consistent performance in the targeted Geo and Toyota models.

Product Details and Specifications

This oxygen sensor features a narrow-band, non-heated design suitable for emission control systems requiring precise air-fuel ratio monitoring. The sensor includes a 17.2-inch wiring harness with a rectangular male connector and blade terminals, facilitating straightforward electrical connections. The flange mounting type and 18 mm thread diameter allow for secure installation in the exhaust system. Constructed with a metal housing and steel finish, the sensor is built to withstand typical automotive operating conditions. The overall length of 20.9 inches and sealing surface to connector length of 19.7 inches provide the necessary reach for proper fitment.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for emission control in Geo and Toyota Celica, Corolla, and Prizm
• Helps resolve engine performance issues related to incorrect air-fuel mixture readings
• Reduces emissions by ensuring proper sensor feedback to the engine control unit
• Addresses check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by maintaining optimal combustion conditions

Installation Notes and Tips

Ensure the vehicle is compatible with part number 12202 before installation. The flange mounting requires proper torque on the 18 mm threaded sensor to avoid exhaust leaks. The included wiring harness with blade terminals and rectangular male connector simplifies electrical connections. Avoid damaging the sensor tip during installation and verify connector seating to prevent signal issues.

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 12202 is manufactured to meet OEM standards for emission control sensors. It is constructed with durable metal housing and tested for reliable operation. While specific warranty details are not provided here, Bosch products typically come with manufacturer-backed quality assurance to support long-term use.