Colorado 2WD V8-5.3L (2009)
2. Install the HO2S (2).
Tighten the sensor to 42 Nm (31 lb ft).
3. Ensure to route the front HO2S wiring under the rear HO2S electrical connector.
4. Connect the HO2S electrical connector (4) to the engine wiring harness electrical connector (3).
5. Lower the vehicle.
