Heated oxygen sensors (HO2S) x2, removing
WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.
Remove the two heated oxygen sensors (HO2S). See Removing the wiring for the heated oxygen sensor (HO2S) and Removing heated oxygen sensor (HO2S) wiring .