9-3 Arc/Aero (9440) L4-2.0L Turbo (2.0 T) (2004)
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1. Lubricate the threads sparingly with 30 20 971 Screw-thread paste and fit the oxygen sensor.
Tightening torque 40 Nm (30 ft lbs).
2. Check that the cables are NOT twisted or damaged. Bend back the corner of the heat shield.
3. Lift up the oxygen sensor cable, making sure it does not get pinched or is exerted to chafing.
