Walker Products 250-24362 rear oxygen sensor for the 1997-2000 Mazda Millenia V6 2.5L measures the oxygen in the exhaust gas to gauge combustion efficiency. This Walker Products oxygen sensor is a 4-wire, direct-fit, narrow-band unit.
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Electrodes use a gas-permeable platinum layer
- Measures oxygen levels to help fine-tune the air-fuel mixture and fuel economy
- Monitors exhaust gases to help reduce pollutants
- Made for its specific application and position, and returns the diagnostic feedback the ECU requires
Quick facts
- Part: Walker Products 250-24362 rear oxygen sensor
- Fits: 1997-2000 Mazda Millenia V6 2.5L
- Position: Upstream rear
- Condition: New
A failing sensor can show up as a rough-running engine, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. Those signs alone do not prove the sensor is at fault, since an exhaust leak can produce some of them too. With the engine off and cool, look over the sensor, wiring harness and connector for physical damage.
Fits
This is an oxygen sensor for the 1997-2000 Mazda Millenia V6 2.5L, which takes one. The listing is a single upstream rear sensor.
Specifications
Fit and size
- Position: Upstream rear
- Quantity per vehicle: 1
- Number of wires: 4
Build and materials
- Type: Narrow-band, direct fit
- Electrodes: gas-permeable platinum layer, with a protective coating
- Condition: New
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Does the Walker Products 250-24362 fit the 1997-2000 Mazda Millenia V6 2.5L?
Yes. The Walker Products 250-24362 rear oxygen sensor is listed for the 1997-2000 Mazda Millenia V6 2.5L, and that car takes one.
Is this oxygen sensor narrow-band or wideband?
Narrow-band. Walker Products 250-24362 is a 4-wire, direct-fit sensor sold individually.
How is the electrode surface of this sensor protected?
A coating prevents contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust. The electrodes use a gas-permeable platinum layer.
Could a bad oxygen sensor cause a check engine light and poor mileage?
Yes, it can. A failed sensor can make the engine run poorly, raise fuel consumption and emissions, or light the malfunction indicator, and newer vehicles may store a related fault code.
What does this sensor tell the engine computer?
It determines the oxygen content of the exhaust gas and monitors the air-fuel ratio. That gives the ECU the diagnostic feedback it needs for this position.
