Walker Products Oxygen Sensor P/N:250-24493
Walker Products 250-24655 front oxygen sensor for the 2001-2003 Toyota Sienna V6 3.0L measures exhaust-gas oxygen to gauge combustion efficiency. This O2 sensor is a 4-wire, narrow-band, direct-fit unit with a flange.
A failed sensor can show up as rough running, higher fuel consumption or a lit malfunction indicator light, though a damaged wiring harness or connector can be behind the same signs, so inspect both for damage before replacing the sensor.
This oxygen sensor is a direct-fit replacement for the 2001-2003 Toyota Sienna V6 3.0L, which takes one. The listing is a single sensor.
Fit and size
Build and materials
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Is this the right O2 sensor for the 2002 Toyota Sienna V6 3.0L?
Yes. Walker Products 250-24655 fits the 2001-2003 Toyota Sienna V6 3.0L, which includes 2002, as the downstream front sensor.
How many of these oxygen sensors does the 2001 Toyota Sienna V6 3.0L take?
One. This listing is a single downstream front sensor, and the 2001-2003 Toyota Sienna V6 3.0L takes one.
Is this Walker Products oxygen sensor narrow band or wideband?
Narrow band. Walker Products 250-24655 is a 4-wire narrow-band sensor with a flange mount and an M18 - 1.5 thread.
Is this a downstream oxygen sensor?
Yes. This sensor sits in the downstream front position, and it determines the oxygen content of the exhaust gas to monitor the air-fuel ratio for combustion efficiency.
What does the coating on this sensor's electrodes do?
The electrodes are made of a gas-permeable platinum layer. The coating keeps combustion residue and exhaust particulates 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.