Does anyone know a way to replace the firewall side downstream O2 sensor. It is quite difficult to get to and I cant get enough torque on it to loosen it.
And just FYI for anyone that is looking for info on placement of the O2 sensors. I got bad information and had to trial and error the whole thing.
Bank 1 is on the firewall side.
Bank 2 is the Radiator side.
Sensor 1 on both sides is the highest sensor on the engine. Sensor 2 is nearest the ground.