mkm0923

Thanks for the clarification. If anyone else has any other information please drop a line. I am going to attempt this today or tomorrow and hopefully it will not be too painful.

Still looking for a diagram if anyone has it.

you can reach from the hood. but somebody do it for $30, not a bad idea

See, that is what I thought but after reading several posts in which some claim the sensor is located up front (easily accessible from the hood) and others state the sensor is between the firewall and the engine. This is the reason why I am posting this thread. I have the means to do it myself, I just want to ensure I am changing out the right bank 1/ sensor 1.

Can someone also tell me where bank 1/ sensor 1 is located on the 1994 ES 300?

I am replacing my O2 sensor (bank 1/ sensor 1) on my 1994 Lexus ES 300 and do not have a diagram. Does anyone have this so I can ensure I am doing this correctly? I am not mechanically inclined, so if anyone has any suggestions on the best way to conduct this please let me know. Also, I am going to use a Bosch replacement part and any feedback on that would be greatly appreciated.

Thanks,

Mike