Oxygen Sensor for 1989-1990 Mitsubishi Sigma & More - Walker 350-32008

Walker Products 350-32008 oxygen sensor for the 1989-1990 Mitsubishi Sigma V6 3.0L and other vehicles measures the amount of oxygen in the exhaust gas. It sends the ECU the diagnostic feedback this application calls for.

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

Quick facts

• Part: Walker Products 350-32008 oxygen sensor
• Fits: 1989-1990 Mitsubishi Sigma V6 3.0L 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, and each of those can have other causes. Before replacing it, look over the sensor, wiring harness and connector for physical damage with the engine off and cool. If this sensor is the cause, this upstream unit replaces it.

Fits

This direct-fit oxygen sensor for the 1988 Mitsubishi Galant V6 3.0L also fits the 1989-1990 Mitsubishi Sigma V6 3.0L. This listing is one sensor, and each of those cars takes one.

Specifications