Bank one is the driver side.
right bank, rear cylinder
The side with cylinder #2, the pass side.
On a 2004 Dodge 2500 with a 5.7-liter engine, Bank 1 Sensor 1 (upstream oxygen sensor) is located on the passenger side of the engine. Specifically, it is positioned in the exhaust manifold, before the catalytic converter. This sensor monitors the oxygen levels in the exhaust gases to help optimize engine performance and emissions.
Trouble code P0420 means: Catalyst Efficiency Below Normal (Bank 1)
The question is a little confusing.Please try to be less wordy,but more precise.Thanks
bank 2 is the drivers side of the engine
bank 2 is closer to the firewall
Bank 1 is the passenger side of the engine and bank 2 is the drivers side of the engine on your 1997 Mercury Mountaineer 5.0 liter V8 engine
bank 1 is the passenger side of the engine
Bank 1 is the passenger side of the engine on a Ford V8 and V6
On a 2007 Dodge Nitro, the Bank 1 O2 Sensor 1 is located on the exhaust manifold, upstream of the catalytic converter. It is positioned on the driver's side of the vehicle, near the engine. This sensor monitors the oxygen levels in the exhaust gases to help manage fuel injection and emissions.
On a Ford 5.4 liter V8 engine : ( in a Ford Expedition , Ford F-150 etcetera ) Bank 1 is the passenger side of the engine , Bank 2 is the drivers side