how do you change the O2 sensor on a 1998 honda civic EX, the one before the converter?

Question

I have been told this is very easy to install. I have purchased the OEM sensor with the plug in tip, so no wiring needed. I need to do this to pass an emissions test and update my registration. A step by step guide would be incredibley useful.

Answer 1

first remove the exhaust manifold heat shield to access the wrench flats on the sensor---only a few small bolts holing this on ...........then remove the sensor.......if i recall a 7/8 inch wrench works nicely. happy wrenching.

Answer 2

1998 Honda Civic O2 Sensor

Answer 3

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RE:
how do you change the O2 sensor on a 1998 honda civic EX, the one before the converter?
I have been told this is very easy to install. I have purchased the OEM sensor with the plug in tip, so no wiring needed. I need to do this to pass an emissions test and update my registration. A step by step guide would be incredibley useful.

Answer 4

1. You will need a special socket with a slot for harness. You can find it at most parts stores for about $20.
2. To access the sensor, you will likely need to unscrew the top mounting bracket of the ac line, and move it off the way. Be careful here - don't bend the line more that absolutely necessary.
3. Using the socket, unscrew the old sensor, lubricate threads on the new one with special heat-resistant grease provided, and screw it in.
4. That's it.

Answer 5

It's pretty basic.

Unplug the wire.
Unscew the old one. (it's going to be VERY tight)
Screw the new one in.
Plug the wire in.