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Upstream would be before the catalytic converter. Downstream would be after the catalytic converter.

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11y ago

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Is the upstream oxygen sensor the same as the downstream oxygen sensor?

no. the upstream sensor is the one before the catalytic converter and the downstream is the one after


How do you fool and oxygen sensor?

Which one? Upstream or downstream?


How many oxygen sensor is it on a zx2?

2 a upstream and downstream


How do you tell if an oxygen sensor is upstream or downstream on a '96 Geo metro I just have one.?

The closer to th engine is upstream and the farther is downstream Before the cat upstream After the cat downstream.


Do you need upstream or downstream oxygen sensor?

Depends on what the problem is or what code was set.


Where is the oxygen sensor located on Plymouths?

There is an upstream and downstream o2 sensor. The upstream is loctaed in the exhaust manifold before the catalytic converter. The downstream is located behind the catlytic converter.


Where is the oxygen sensor on a 1998 Dodge Dakota located?

On the 98 u have two oxygen sensors an upstream and a downstream. The upstream oxygen sensor is located closer to the front of the truck by the transmission. The downstream oxygen sensor is located on down torwards the back of the truck along the side of the frame.


How many oxygen sensors on an 01 eclipse gt?

Two, an upstream and a downstream oxygen sensor.


Where is the oxygen sensor in a 2001 Hyundai Elantra?

The 1996-2001 Elantra's have two sensors the upstream and downstream the upstream sensor is located the exhaust manifold and the downstream is located behind the catalytic converter.


Where is the oxygen sensor on a 2000 cavalier?

The upstream oxygen sensor is mounted in the exhaust manifold The downstream oxygen sensor is mountedin the exhaust pipe after catalytic converter


How do you know which oxygen sensor is bad in a 2002 Dodge Caravan?

Get the check engine light looked at, the code will specify if it is the upstream or downstream sensor. The upstream will be on the exhaust manifold, and the downstream will be on the pipe after the catalytic converter.


Where is the oxygen sensor upstream and downstream located in 99 Dodge Stratus?

usually, upstream means the one in the exhaust manifold and downstream is the one closest to the catalytic converter

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