Oxygen Sensor for 1989-1991 Toyota Corolla & More - Walker 350-34579

Walker Products 350-34579 oxygen sensor for the 1989-1991 Toyota Corolla 4-cylinder 1.6L and other vehicles measures the oxygen in the exhaust gas to show combustion efficiency. This upstream sensor gives the ECU the feedback it needs to monitor the air-fuel ratio.

• Monitors exhaust gases and reduces pollutants for a cleaner environment
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Determines the oxygen content of the exhaust gas and monitors the air-fuel ratio
• Measures oxygen levels to fine-tune the air-fuel mixture and support fuel economy
• Electrodes coated with a gas-permeable platinum layer
• Narrow-band sensor with four wires and a flange mount

Quick facts

• Part: Walker Products 350-34579 oxygen sensor
• Fits: 1989-1991 Toyota Corolla 4-cylinder 1.6L and other vehicles
• Position: Upstream
• Condition: New

A failing sensor can show up as rough running, higher fuel consumption or a lit malfunction indicator light. Before replacing it, look over the sensor, its wiring harness and the connector for physical damage with the engine off and cool, since damage there can cause trouble too. If the sensor is the cause, this one replaces it.

Fits

This oxygen sensor fits the 1989-1991 Toyota Corolla 4-cylinder 1.6L and the 1990-1992 Geo Prizm 4-cylinder 1.6L. The listing is one sensor, and the 1989-1991 Toyota Corolla 4-cylinder 1.6L takes one.

Specifications