there are 4. one on each exhaust downpipe and one before and after the cat.
A 2007 Durango has four oxygen sensors.
There is 1 in the passengers side manifold in front of muffler easily reached from just under the truck the other is behind the cat converter
There are usually two separate speeds sensors on a 1998 Dodge Ram. One is located on the rear of the automatic and one is located on the front of the automatic.
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AnswerThere are two, one on either side of the catalytic converter.
a 1998 car will have (2) 02 sensors per bank. In other words, a v6 or v8 will have a total of 4 sensors and a 4 cyl. will have 2 sensors. One is located before the catalytic converter and one is after or behind the cat.
The 4.7L 2002 dodge durango has 4 O2 sensors. ref. Chilton's Dodge Durango/Dakota 2001-03 repair manual. page 6-19 (Oxygen sensor - general info and replacement) The upstream oxygen sensor is located before the catalytic converter. The downstream oxygen sensor is located is located after the catalytic converter.
2, Before & after the catalytic converter.
California emissions= 4. All other states= 2.
any car after 1995 has two, or four oxygen sensors,as they use OBDII system
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There are two, one on each side of the catalytic converter.There are two, one on each side of the catalytic converter.