C 1500 Truck 2WD V6-4.3L VIN W (1996)
Oxygen Sensor: Component Locations
Oxygen Sensor Configurations
Bulletin No.: 67-65-40
PICTORIALS OF THE DESIGNATION OF OXYGEN SENSORS
There has been some confusion relative to OBD II oxygen sensor designation. The intent of this article is to eliminate misdiagnosis of those oxygen
sensors due to mis-identification. This chart can help locate the appropriate bank and sensor for the diagnostic.
NOTE: For "V" engines; BANK 1 is always on the side of the engine with the number 1 cylinder (odd cylinders), and BANK 2 is always on the side
of the engine where the number 2 cylinder (even cylinders) is located.
