Depending on the make, model and engine type, oxygen sensors can be found in a variety of places. Below are
some of the more common locations.
Traditional V6 & V8:
4 Cylinder Transverse:
V6 & V8 Transverse:
(Left or right bank is determined viewing from the rear of the engine (opposite the belts). In this illustration, the rear of the engine is indicated.
4 & 6 Cylinder In-Line:
Sensor location for split manifold is shown. For a single
manifold, there is only one pre-cat senso