Removal - Upstream 1/1
- Raise and support vehicle.
- Unplug sensor connector.
- Remove sensor using an oxygen sensor crow foot wrench such as Snap-On tool YA8875 or equivalent. See Fig 1.
- After removing the sensor, the exhaust manifold threads must be cleaned with an 18 mm X 1.5 + 6E tap. If reusing the original sensor, coat the sensor threads with an anti-seize compound such as Loctite® 771-64 or equivalent.
| 1 - EXHAUST PIPE FLANGE |
| 2 - CROW FOOT WRENCH |
| 3 - UPSTREAM OXYGEN SENSOR |