I have an 2002 accord ex with a CEL on and is showing code p0133 which is the front sensor closest to the cylinder head. Looking around here and online and the honda stealer I have a range in brands and prices to choose from? On the high end $200+ for Honda OE and then Denso, Bosch and a few others. Anyone have any thoughts and best place to buy?

Also can someone tell me what generation my car is and how to tell what engine I have and if it's a ULEV or just the LEV?