Oxygen Sensor for 1991-1994 Saturn SL & More - Walker 350-31030

Walker Products 350-31030 oxygen sensor for the 1991-1994 Saturn SL 4-cylinder 1.9L and other vehicles reads the oxygen content of the exhaust gas. This upstream Walker Products oxygen sensor is a direct-fit, narrow-band design, and its readings let the engine control unit judge combustion efficiency.

• Electrodes made of a gas-permeable platinum layer
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases
• Oxygen readings let the engine control unit fine-tune the air-fuel ratio, which helps fuel economy
• Monitors exhaust gases to help reduce pollutants
• Provides the diagnostic system feedback the engine control unit requires

Quick facts

• Part: Walker Products 350-31030 oxygen sensor
• Fits: 1991-1994 Saturn SL 4-cylinder 1.9L and other vehicles
• Position: Upstream
• Condition: New

A failing sensor can show up as rough running, higher fuel use, more exhaust emissions or a lit check engine light. A damaged wiring harness or connector, or another engine fault, can sit behind those signs too, so find the cause before you buy a new sensor.

Fits

This listing is one direct-fit oxygen sensor for the vehicles it fits, which include the 1991-1994 Saturn SL1 4-cylinder 1.9L and the 1991-1994 Saturn SL2 4-cylinder 1.9L, with one sensor per car. Open the "Vehicles it fits" section to check your exact model and engine.

Specifications