anybody could help me out how to replace my accord '90 O2 sensor i guess this is the problem after doing a self diagnostic test it came out as code 43.
what tools should i use and where can i get the O2 sensor?
where is the O2 sensor located in accord lx 1990
thanks
email: turrismaldon@yahoo.com

 

You can get an O2 sensor at any auto parts store, but it will be cheaper to try to locate one at a junkyard.

The O2 sensor is probably on the exhaust pipe just before the catalytic converter and after the last pipe of the header. It is threaded into the top of pip and will probably be a complete bitch to get out, be liberal with the WD40 and use a big adjustable wrench, maybe even with a breaker bar. Unplug the wiring from the plug several inches up. This is based upon my experiences with the 5th Gen, should be similar for your car.

 

thanks
would i need to go under the car?
i saw it between the radiator fan and the exhaust manifold

 

on the base motor, you can easliy get to it from the top of the engine.....

 

thanks
what tools shoud i use?
what is an anti seize?

 

Disregard my post, then, looks like they're in different locations.

Anti-seize is an agent like Liquid Wrench or WD40 that will help break what will most likely be a threaded bolt that is corroded shut.

 

Buy a new o2 sensor. Do not waste your time and money at a junkyard for this part. 02 sensors are often overlooked and should be replaced every so often to ensure your car is running properly. There is no telling what condition the 02 sensor you would get from a junkyard is in.

 

i have an O2 sensor from my 2001 accord engine...if ya want it, i'll sell it cheap