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Where can I find the oxygen sensor on a 2003 Volkswagen Passat?
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★ Top Answer
In your 2003 Volkswagen Passat, there are two oxygen sensors. The front one is located approximately a foot before the catalytic converter inlet, while the rear sensor is about the same distance after the converter. The exact positioning may vary slightly based on your specific trim level. An affordable replacement option is the Walker Exact Fit Oxygen Sensor, part #350-34601 available at AutoZone for around $50. Installing the new sensor is a straightforward process of removing the old one, disconnecting the wire harness, attaching it to the new sensor, and securing it in place. You might need to manually clear any diagnostic trouble codes or reset the check engine light if it's on.
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The O2 sensor on a 2003 Volkswagen Passat is situated in the exhaust system, both before and after the catalytic converter.
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