Ok so Im going to be changing my o2 sensor since it is the source of my check engine light, Im getting it online since it's almost $40+ cheaper than Autozone.
Its the before cat. converter main sensor, but online they sell a 3,4, and 1 wire o2 sensor, which one do I need or would fit best?

Links would help, thanks!

 

Bump for an answer, I'm in the same boat lol.

 

Cant you look at the OEM one that is currently installed? I think it is a 4 wire plug.

 

if it's a 6th generation non-VTEC, check for cracked manifold first. The HX requires a different (expensive) sensor-- I don't think generic ones will work.

Otherwise if that's the only detail you have, it's a 4 wire type.