upstream 02 sensor located right above exhaust manifold gasket downstream located right in front of catallytic converter
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.
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.
In the exhaust between the engine and the catalytic converter.
There is an upstream and downstream O2 sensor (bank1 and bank2). Upstream is located close to the engine bay in FRONT of the cat converter, and 2 is located behind the converter.
There is a total of 4 oxygen sensors the 2 upstream sensors are located right below the exhaust manifold flanges and above the upstream catalytic converter.The 2 downstream sensors is located in the exhaust pipe,right behind the upstream catalyst,and ahead of the main catalyst.
usually, upstream means the one in the exhaust manifold and downstream is the one closest to the catalytic converter
They are typically on the exhaust manifold.
I'm assuming you mean the upstream O2 sensor, which is "upstream" of the catalytic converter in the exhaust manifold or pipe.
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.
There are two upstream O2 sensors 4.0L V6 Upstream & Downstream Sensor Locations * Both upstream sensors are screwed into the exhaust pipe right below the exhaust manifold flanges * Both downstream sensors are located in the catalytic converters 4.6L V8 Upstream & Downstream Sensor Locations * The left upstream sensor is screwed into the exhaust manifold right above the manifold flange and the right upstream sensor is screwed into the exhaust pipe right below the exhaust manifold flange * Both downstream sensors are located in the catalytic converters
upstream sensor will be located before the cat downstream sensor will be located on the cat itself