sherminator866

hey guys. i pulled a code for bad air fuel sensor bank 1 sensor 1. if im correct it is the sensor just behind the motor on the downpipe off the manifold passenger side? or is it the one thats more under the car? if im right is there any tips on removing the one just behind the engine? there is no room between the firewall and engine to even get a wrench on the thing. any help guys? thanks a lot. i hate these newer cars and it is not the same as working on my 22re...