My '99 has two, the one before the cat is the up stream or #1 and the one past the cat is the down stream #2. and Payless is correct they are heated and the heater quitting or the harness getting on the exhaust and shorting can cause you problems.
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Level: Jeep Commander
Re: Quick Information needed on 1998 Oxygen Sensors.
My '99 has two, the one before the cat is the up stream or #1 and the one past the cat is the down stream #2. and Payless is correct they are heated and the heater quitting or the harness getting on the exhaust and shorting can cause you problems.
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