i had my check engine light come on last month with a 43.I have a 93 honda accord ex. i changed the O2 sensor and it was running fine for 3 weeks. the light came on again yesterday. I disconnected the battery when i changed the O2 sensor. what next that i should change?

 

The Dreaded Code 43..The biggest problem with this code is that it's meaning was lost in translation, and that has never been corrected.
The code definition should be "This engine is running too rich"
Air filter all plugged up? Spark plugs? Throttle plate cleaned?

 

I checked the plugs, they look fine. I'll try to clean the throttle plate. air filter is fine. thanks for the help.