Codes for my car are P0155 and P0135 Bank 2 Sensor 1 and Bank 1 Sensor 1. Does that mean both sensors are bad before the cat? If so... WOW! I'm F N up!
Oh yea and what types of problems do these codes cause? My car gets good mileage and it runs great. Or should it be running better? If so Damn I got a clean ride!