Oxygen Sensor for 1990-1992 Mazda MX-6 & More - Walker 250-21034

Walker Products 250-21034 oxygen sensor for the 1990-1992 Mazda MX-6 4-cylinder 2.2L and other vehicles measures the oxygen in the exhaust gas. That reading is how the engine computer tracks combustion efficiency.

• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Electrodes made of a gas-permeable platinum layer
• Oxygen readings help fine-tune the air-fuel mixture, which can improve fuel economy
• Monitors exhaust gases to help reduce pollutants

Quick facts

• Part: Walker Products 250-21034 oxygen sensor
• Fits: 1990-1992 Mazda MX-6 4-cylinder 2.2L and other vehicles
• Position: Upstream
• Condition: New

Rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light can mean the sensor is worn, though the wiring harness or the connector can also be behind them. Look both over for physical damage before you replace the sensor.

Fits

This upstream sensor fits the 1990-1992 Mazda MX-6 4-cylinder 2.2L and is an oxygen sensor for the 1990-1991 Mazda 626 4-cylinder 2.2L. This listing is one sensor, and both cars take one.

Specifications