Oxygen Sensor for 1990-1991 Toyota Corolla & More - Walker 350-34580

Walker Products 350-34580 oxygen sensor for the 1990-1991 Toyota Corolla 4-cylinder 1.6L and other vehicles measures the oxygen content of the exhaust gas. This upstream sensor reports combustion efficiency back to the ECU.

• Monitors exhaust gases to help reduce pollutants
• Electrodes with a gas-permeable platinum layer
• Oxygen readings help fine-tune the air-fuel ratio and support fuel economy
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and exhaust particulates
• Four-wire narrow-band titania design with a flange
• Made for its specific application and fitment position, with the diagnostic feedback the ECU requires

Quick facts

• Part: Walker Products 350-34580 oxygen sensor
• Fits: 1990-1991 Toyota Corolla 4-cylinder 1.6L and other vehicles
• Position: Upstream
• Condition: New

A rough-running engine, higher fuel use or a lit malfunction indicator light can mean this sensor is worn, though damage to the wiring harness or connector can be behind them too, so look both over with the engine off before replacing the sensor.

Fits

This oxygen sensor fits the 1990-1991 Toyota Corolla 4-cylinder 1.6L and the 1990-1992 Geo Prizm 4-cylinder 1.6L.

Specifications

In the box

This listing holds one oxygen sensor, and both cars named above need only one.