how to do it. on 2000 Mercury Grand Marquis

were would locate my o1 bank1 02 oxygen sensor? Is located on the passenger side or driver side confuse its many of them when i looked.

by in Milwaukee, WI on April 02, 2011
1 answer
ANSWER by , April 02, 2011
Bank one is the passenger side. Bank one sensor one would be on the engine side of the cat.