It is the one after the catalytic converter?
Would it be the same on a 2001 civic
The oxygen sensor is mounted in the exhaust down-pipe
its is located downstream on the backside exhaust manifold
it is the upper stream o2 sensor before the convertor
behind the catalytic converter
In the Exhaust manifold at the front of the engine
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.
That is the oxygen sensor screwed into the downstream side of the catalytic converter.That is the oxygen sensor screwed into the downstream side of the catalytic converter.
The speed sensor, on a 2001 Honda Civic, is attached to the front drive wheel. The drive wheel is the front wheel on the passenger side.
daewoo lanos oxygen sensor is located at the front of the engine approx in the middle of the outlet manifold as enclosed pics confirm:
As far as I know, there are 4 oxygen sensors on a 2001 Hyundai Santa Fe. 1 upstream sensor and 1 downstream sensor located in the front manifold/exhaust and 1 upstream and 1 downstream sensor located in the rear manifold/exhaust.
try the air flow meter