Quote:
Originally Posted by Ryland
It's rare for the o2 sensor to throw a check engine light code, unplugging the o2 sensor is the most common way to test it as most people feel a stumbling with a failed o2 sensor.
Bad exhaust or over sized exhaust is the most common caused of a dead o2 sensor.
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Hmm, incidentally the car does need a new exhaust. So are you saying that to test the O2 sensor, I must unplug it and see if the car stumbles?