Walker Products 250-24245 rear oxygen sensor for the 1995-1998 Mazda Protege 4-cylinder 1.8L, the 1999-2000 Protege 4-cylinder 1.6L and other vehicles reads the oxygen content of the exhaust gas to track combustion efficiency. Every Walker Products oxygen sensor is made for its specific application and fitting position, and it gives the ECU the diagnostic feedback it expects.
- Measures oxygen in the exhaust gas to monitor the air-fuel ratio
- Narrow-band sensor with 4 wires
- Electrodes made of a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Monitors exhaust gases to help reduce pollutants
Quick facts
- Part: Walker Products 250-24245 oxygen sensor
- Fits: 1995-1998 Mazda Protege 4-cylinder 1.8L, the 1999-2000 Protege 4-cylinder 1.6L and other vehicles
- Position: Upstream, downstream, upstream rear
- Condition: New
A failing sensor can show up as rough running, higher fuel consumption or a lit malfunction indicator light. Before you replace the sensor, look over its wiring harness and connector for physical damage, since a fault there can also set off a warning light, and a shop can read the stored codes to sort out which one it is.
Fits
The vehicles it fits include the 1995-1998 Mazda Protege 4-cylinder 1.8L, the 1999-2000 Protege 4-cylinder 1.6L, the 1999-2000 Mazda Miata 4-cylinder 1.8L and the 1995-1997 Kia Sephia 4-cylinder 1.8L. The application calls for one sensor, and this listing supplies one. If your car is not named here, open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Position: upstream, downstream, upstream rear
- Quantity per application: 1
- Thread size: M18 - 1.5
- Number of wires: 4
Build and materials
- Sensor type: narrow-band
- Electrodes: gas-permeable platinum layer
- Condition: new
Frequently Asked Questions
Is this Miata oxygen sensor right for a 1999-2000 Mazda Miata 4-cylinder 1.8L?
Yes. Walker Products 250-24245 is listed for the 1999-2000 Mazda Miata 4-cylinder 1.8L, and that application takes one sensor.
Will this Protege oxygen sensor fit a 1999-2000 Mazda Protege 4-cylinder 1.6L?
Yes. The 1999-2000 Mazda Protege 4-cylinder 1.6L is among the vehicles listed for this sensor. For other cars, open the "Vehicles it fits" section to check your exact model and engine.
What thread size does the Walker Products 250-24245 oxygen sensor have?
Walker Products 250-24245 has an M18 - 1.5 thread. It is a narrow-band sensor with 4 wires.
Will a failing oxygen sensor turn on the check engine light?
Yes, it can. Newer vehicles store fault codes in the ECU, and a failed sensor may light the malfunction indicator. A shop can read the codes to see what is behind it.
What does the platinum layer on this oxygen sensor do?
The electrodes are made of a gas-permeable platinum layer. The coating prevents contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gases.
