Oxygen Sensor for 1990-1993 Mazda Miata - Walker 250-21035

Walker Products 250-21035 oxygen sensor for the 1990-1993 Mazda Miata 4-cylinder 1.6L measures combustion efficiency from the amount of oxygen in the exhaust gas. This Walker Products oxygen sensor is a narrow-band unit for the upstream position.

• Electrodes made of a gas-permeable platinum layer
• Coating guards the electrode surfaces against contamination and erosion from combustion residue and particulates in the exhaust gases
• Monitors the air-fuel ratio for combustion efficiency
• Provides the diagnostic feedback the ECU requires for its specific application and position

Quick facts

• Part: Walker Products 250-21035 oxygen sensor
• Fits: 1990-1993 Mazda Miata 4-cylinder 1.6L
• Position: Upstream
• Condition: New

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

Fits

This sensor is a direct-fit replacement for the 1990-1993 Mazda Miata 4-cylinder 1.6L, which takes one in the upstream position. This listing is one sensor.

Specifications