Walker Products 250-22051 oxygen sensor for the 1993-1994 Toyota Corolla 4-cylinder 1.8L, the 1993-1995 Corolla 4-cylinder 1.6L and other vehicles measures the oxygen content of the exhaust gas. As a downstream, narrow-band sensor, it reports combustion efficiency to the ECU.
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Measures oxygen levels to help fine-tune the air-fuel mixture for fuel economy
- Monitors the air-fuel ratio by reading the oxygen content of the exhaust gas
- Electrodes with a gas-permeable platinum layer
- Monitors exhaust gases to help reduce pollutants
Quick facts
- Part: Walker Products 250-22051 oxygen sensor
- Fits: 1993-1994 Toyota Corolla 4-cylinder 1.8L, the 1993-1995 Corolla 4-cylinder 1.6L and other vehicles
- Position: Downstream
- Condition: New
A failing oxygen sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. A damaged wiring harness or connector can be behind some of these symptoms too, so find the cause before you buy a replacement sensor.
Fits
This is a direct-fit replacement for the 1993-1994 Toyota Corolla 4-cylinder 1.8L and the 1993-1995 Corolla 4-cylinder 1.6L, and for the 1993-1994 Geo Prizm 4-cylinder 1.8L and the 1993-1995 Prizm 4-cylinder 1.6L. The listing is one sensor, and both models take one in this downstream position.
Specifications
Fit and size
- Position: Downstream
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
- Mounting: Flange mount
Build and materials
- Type: Narrow-band
- Wires: 2
- Electrodes: gas-permeable platinum layer
- Condition: New
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is Walker Products 250-22051 the right oxygen sensor for a 1993-1995 Toyota Corolla 4-cylinder 1.6L?
Yes. Walker Products 250-22051 fits the 1993-1995 Toyota Corolla 4-cylinder 1.6L and the 1993-1994 Corolla 4-cylinder 1.8L. It goes in the downstream position.
Does this downstream oxygen sensor fit the 1993-1995 Geo Prizm 4-cylinder 1.6L?
Yes. Walker Products 250-22051 fits the 1993-1995 Geo Prizm 4-cylinder 1.6L and the 1993-1994 Prizm 4-cylinder 1.8L, taking one sensor in the downstream position.
Is this oxygen sensor narrow-band, and what thread does it have?
This oxygen sensor is narrow-band, with 2 wires, a flange mount and an M18 - 1.5 thread.
What can a failing downstream oxygen sensor cause?
A failing downstream oxygen sensor can show up as the engine running poorly, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light.
Does this oxygen sensor have a coating on the electrodes?
Yes. A coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases. The electrodes also carry a gas-permeable platinum layer.
