Wiki User
∙ 9y agoThe oxygen sensor on a 1999 Honda Civic is located on top of the catalytic converter. The catalytic converter is under the car.
Wiki User
∙ 9y agoIt is the one after the catalytic converter?
The primary oxygen sensor is located before the catalytic on most Hondas depending on the year. If your Honda has the catalytic converter integrated to the exhaust manifold then you should find it on the manifold just before the catalytic converter.
oxygen sensors are located just forward of your engine. In front of the engine is the catalytic converter. At the top at the bottom are your oxygen sensors.
The manifold is considered before the catalytic converter.
If you open the hood of your Honda Civic, most likely you will locate the oxygen sensor (O2) mounted in the exhaust manifold, above the exhaust pipe flange. On some models the exact location might vary, but you can always find the sensor by following the exhaust manifold and pipe. Depending on the year model of your Honda Civic, you may find a Primary Oxygen Sensor (PHO2) right before the catalytic converter and a Secondary Oxygen Sensor (SHO2) right after the catalytic.
That would be the O2 sensor after the catalytic converter.
There is one and it is before the catalytic converter.
There is one before the catalytic converter where the 4 runners meet on the exhaust manifold. And the second one is after the catalytic converter.
in the catalyc converter... exhaust manifold
The O2 sensor on a Honda Civic is found on the exhaust system. It will be mounted near the catalytic converter. Simply unscrew the sensor from the exhaust pipe and unplug it from the wire harness. Replace with a new unit.
in the exhaust manifold (it screws in) or if not there it could possibly be screwed into the converter
There should be one in the header and one more in the catalytic converter.