Walker 250-241245 oxygen sensor for the 2015-2018 Toyota Yaris 4-cylinder 1.5L measures the oxygen content of the exhaust gas. This Walker oxygen sensor is made for its specific application and fitment position, and it gives the ECU the diagnostic feedback it needs.
- Electrodes made of a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Monitors the air fuel ratio for combustion efficiency
- Oxygen readings help the engine control system fine-tune the air-fuel mixture, which supports fuel economy
- Narrow-band sensor with an M18 - 1.5 threaded body
Quick facts
- Part: Walker 250-241245 oxygen sensor
- Fits: 2015-2018 Toyota Yaris 4-cylinder 1.5L
- Position: Downstream
- Condition: New
A failing sensor can show up as an engine that runs poorly, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. Before you replace this sensor, look its wiring harness and connector over for physical damage and read the stored fault codes, because damaged wiring shortens a sensor's life too.
Fits
It fits the 2015-2018 Toyota Yaris 4-cylinder 1.5L.
Specifications
Fit and size
- Position: downstream
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
Build and materials
- Sensor type: narrow-band
- Electrodes: gas-permeable platinum layer
- Condition: new
In the box
This listing is one oxygen sensor, and the 2015-2018 Toyota Yaris 4-cylinder 1.5L takes one downstream sensor.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is Walker 250-241245 the right Yaris oxygen sensor for the 2015-2018 Toyota Yaris 4-cylinder 1.5L?
Yes. Walker 250-241245 is a downstream oxygen sensor listed for the 2015-2018 Toyota Yaris 4-cylinder 1.5L, and that engine takes one.
Is this Walker O2 sensor an upstream or a downstream unit?
It is a downstream sensor. This narrow-band oxygen sensor is listed for the downstream position only.
What thread does this Walker Products oxygen sensor use?
The body is threaded with an M18 - 1.5 thread. That is the thread size to match against your old sensor.
Can a failed downstream oxygen sensor cause a check engine light or higher fuel use?
It can. A failing sensor can make the engine run poorly, raise fuel consumption or exhaust emissions, or light the malfunction indicator. A shop can read the stored fault codes.
What protects the electrodes on Walker 250-241245?
The electrodes are a gas-permeable platinum layer. A coating shields the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust.
