Walker Products Oxygen Sensor P/N:350-341076
Walker Products 350-34835 oxygen sensor for the 1998-2002 Toyota Corolla 4-cylinder 1.8L and other vehicles measures the oxygen in the exhaust gas. It sends the ECU the diagnostic feedback it needs for this application.
A failing sensor can show up as rough running, higher fuel consumption or a lit malfunction indicator light. Before you replace this sensor, rule out physical damage to its wiring harness and connector, because those signs can come from other causes. If the sensor is the cause, this one takes its place.
It is a direct-fit sensor for the 1998-2002 Toyota Corolla 4-cylinder 1.8L and the 1998-2002 Chevrolet Prizm 4-cylinder 1.8L.
Fit and size
Build and materials
One oxygen sensor. This listing holds a single sensor, and the engine takes one at this upstream position.
Is the Walker Products 350-34835 an O2 sensor for the 2001 Toyota Corolla 4-cylinder 1.8L?
Yes. Walker Products 350-34835 fits the 1998-2002 Toyota Corolla 4-cylinder 1.8L, and that range includes the 2001 model year.
Will this oxygen sensor fit the 1998-2002 Chevrolet Prizm 4-cylinder 1.8L?
Yes. The 1998-2002 Chevrolet Prizm 4-cylinder 1.8L is on the fitment list for this upstream sensor.
Is the Walker Products oxygen sensor narrow-band or wideband?
It is narrow-band. Walker Products 350-34835 is a 4-wire sensor with a flange mount.
Can a failing upstream oxygen sensor raise fuel consumption?
It can. A failed sensor may make the engine run poorly, raise fuel consumption or exhaust emissions, or light the malfunction indicator light. A shop can read the stored fault codes.
What is the coating on this oxygen sensor for?
The coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases. The electrodes use a gas-permeable platinum layer.
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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.