Is there any chance that it's not the right o2 sensor since I keep reading that there is a total of 3 sensors. Just replaced mines with a denso a couple minutes ago and I still have a the light throwing code 21? This is on a 95 sc300. Could it be a bad sensor or the other sensor pre cat? Thanks.

 

Step 3)
Then remove the O2 sensor plug-in clip (a flathead works well, be careful, those things are brittle when old)



(speaking of clips, I needed to clip my nails there...)

Step 4)

Cut the wires off of the old O2 sensor solder/electrical tape/bubble gum that new universal Bosch sensor in.



Step 5)

Reinstall everything, reconnect the battery, enjoy life.



John[/QUOTE]

 

What are the bank sensor for code 25 and 26 on 93 lexus es 300