Grand Prix V6-3.8L (2007)
6. Remove the exhaust manifold pipe stud nuts (2) and the catalytic converter pipe (3) from the right exhaust manifold.
7. Lower the vehicle.
8. Rotate the engine to access the right side of the engine.
9. Disconnect the heated oxygen sensor (HO2S) electrical connector (1).
10. Remove the HO2S electrical connector (1) from the engine sight shield bracket.
11. Remove the HO2S (2) from the right exhaust manifold.
12. Remove the right side spark plugs from cylinders 2, 4 and 6.
13. Remove the fuel injector sight shield bracket nuts (2).