Walker Products 350-34496 oxygen sensor for the 2014-2016 Toyota Yaris 4-cylinder 1.5L and other vehicles measures the oxygen in the exhaust gas. It is made for its specific application and fitment position, and gives the ECU the diagnostic feedback it expects.
- Monitors exhaust gases to help keep pollutants down
- Reads the oxygen content of the exhaust gas to track the air-fuel ratio and combustion efficiency
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Electrodes made of a gas-permeable platinum layer
- Oxygen readings let the air-fuel mixture be fine-tuned, which supports fuel economy
Quick facts
- Part: Walker Products 350-34496 oxygen sensor
- Fits: 2014-2016 Toyota Yaris 4-cylinder 1.5L and other vehicles
- Position: Upstream
- Condition: New
A failing sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. Those signs can mean the sensor is worn, though a damaged wiring harness or connector can produce them too, so inspect both for physical damage first.
Fits
This direct-fit upstream sensor suits the 2014-2016 Toyota Yaris 4-cylinder 1.5L, the 2004-2006 Scion xA 4-cylinder 1.5L and the 2004-2006 Scion xB 4-cylinder 1.5L. The fitment calls for one upstream sensor per engine, and this listing is one sensor. If your car is not named here, look up your year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Upstream
- Quantity per vehicle: 1
- Number of wires: 4
Build and materials
- Type: Narrow-band
- Electrode layer: gas-permeable platinum
- Condition: New
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this the right Scion xB oxygen sensor for 2004-2006 models with the 4-cylinder 1.5L engine?
Yes. Walker Products 350-34496 is listed for the 2004-2006 Scion xB 4-cylinder 1.5L, in the upstream position, and the engine takes one.
Will this Yaris oxygen sensor work on 2014-2016 models with the 4-cylinder 1.5L engine?
Yes. The 2014-2016 Toyota Yaris 4-cylinder 1.5L is listed for this upstream sensor, one per engine.
Is this Walker Products oxygen sensor narrow-band or wideband?
Narrow-band. Walker Products 350-34496 is a four-wire narrow-band sensor made for the upstream position.
Can a worn upstream oxygen sensor turn on the check engine light?
Yes. A failing sensor can make the engine run poorly, raise fuel consumption or exhaust emissions, or light the malfunction indicator. Newer vehicles may also store a fault code in the ECU.
What does the coating on this oxygen sensor do?
The coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gas. The electrodes are a gas-permeable platinum layer.
