Walker Products Oxygen Sensor P/N:350-34293
Walker Products 350-35033 oxygen sensor for the 2010-2013 Mazda 3 4-cylinder 2.5L and other vehicles measures the oxygen in the exhaust gas to show combustion efficiency. This upstream wide-band sensor is made for its specific application and fitment position, and it passes the diagnostic feedback the ECU requires.
A failing sensor can make the engine run poorly, raise fuel consumption and exhaust emissions, or turn on the malfunction indicator light. Before you replace the sensor, rule out physical damage to its wiring harness and connector, since damaged wiring can also shorten a sensor's life.
It fits the 2010-2013 Mazda 3 4-cylinder 2.5L and the 2012-2013 Mazda 3 Sport 4-cylinder 2.5L. The listing is a single sensor, and these cars take one.
Fit and size
Build and materials
Is this oxygen sensor replacement right for the 2010-2013 Mazda 3 4-cylinder 2.5L?
Yes. Walker Products 350-35033 is the upstream wide-band sensor for the 2010-2013 Mazda 3 4-cylinder 2.5L, and the 2012-2013 Mazda 3 Sport 4-cylinder 2.5L takes it too.
Is this a 2010 Mazda 3 oxygen sensor for the 4-cylinder 2.5L?
Yes. The 2010 model year is part of the 2010-2013 Mazda 3 4-cylinder 2.5L fitment, and the car takes one sensor.
Is this Walker Products oxygen sensor an upstream or downstream sensor?
Upstream. Walker Products 350-35033 is a wide-band upstream sensor made for its specific application and fitment position.
What signs can a failing wide-band oxygen sensor like this one show?
The engine can run poorly, fuel consumption and exhaust emissions can rise, or the malfunction indicator light can come on. Newer vehicles may also store related fault codes in the ECU.
What is the platinum layer on this oxygen sensor for?
The electrodes have a gas-permeable platinum layer, and the coating keeps combustion residue and particulates in the exhaust from contaminating or eroding the electrode surfaces.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.