Walker Products Oxygen Sensor P/N:350-34462
Walker Products 350-64014 oxygen sensor for the 2001-2003 Toyota Sienna V6 3.0L and other vehicles measures the oxygen in the exhaust gas to track combustion efficiency. Each part number is made for its specific application and fitment position, and it returns the diagnostic feedback the ECU needs.
A failing sensor can show up as rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light. Those signs alone do not prove the sensor is at fault, since a vacuum leak can also make an engine run poorly.
Beyond the 2001-2003 Toyota Sienna V6 3.0L, this is an oxygen sensor for the 2000-2004 Toyota Avalon V6 3.0L and the 2000-2001 Lexus ES300 V6 3.0L.
Fit and size
Build and materials
One oxygen sensor. Each listed vehicle takes one.
Is this an upstream O2 sensor for the 2001-2003 Toyota Sienna V6 3.0L?
Yes. Walker Products 350-64014 is listed for the upstream front and upstream rear positions on the 2001-2003 Toyota Sienna V6 3.0L, and that vehicle takes one.
Is this Walker Products oxygen sensor a wide-band type?
Yes. Walker Products 350-64014 is a 4-wire wide-band air fuel ratio sensor that determines the oxygen content of the exhaust gas.
What thread size does Walker 350-64014 have?
This sensor is threaded, with an M18 - 1.5 thread.
Does a failing oxygen sensor store a fault code on newer vehicles?
Yes, on newer vehicles the ECU stores fault codes, and some relate to the affected sensor and its systems. A shop can read them, and the harness and connector can be checked for physical damage.
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 gases. The electrodes are made of 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.