Bank 2 always refers to the passenger side on vehicles with V-shaped engines. The sensor itself will be threaded into the exhaust manifold or the exhaust pipe very close to it. You'll likely find it further down the exhaust system than the Bank 1 (driver's side) sensor.
To locate it precisely:
1. Consult a repair manual: A Haynes or Chilton manual specific to your year, make, model, and engine will show you a diagram and the exact location. This is the most reliable method.
2. Use an online diagram: Websites like AutoZone or Advance Auto Parts often have diagrams you can access by entering your vehicle's details. Be aware that these diagrams may not be perfectly accurate for all variations.
3. Visual inspection: Once you've located the passenger-side exhaust manifold, carefully inspect the area for a sensor with a wire harness connected to it. It will likely be in a relatively exposed area. Be cautious of hot exhaust components! Let the engine cool completely before attempting any visual inspection.
Remember safety first! Exhaust components get extremely hot. Allow the engine to cool completely before working near the exhaust system.
