hi...like a newbee,ijust bought the wrong o2 sensor for my liberty 2002...i had the code p0155,for bank 2 sensor1...the guy at car shop lead me to a bad information about it...i tought bank 2 was on passenger side...and i look like it's the driver side...but can i use it for that?? it's still the sensor 1,the upstream one,but in the wrong side....can someone help me on that??