I have a question, is it possible to clean off the 02 sensors instead of buying new ones. Guy I work with has a bad sensor and thinks we can clean them off instead of buying 4 new ones at the price of 80 a piece, so I figure it's worth a shot. Gonna be taking them out around 530 so answers before then would be nice. If anyone has some info on this text my cell. Go to cellularsouth.com, click on text messaging, and my number is 662-822-0241. You can just text me straight if you have text messaging, thanks guys, trying to help out my boss.