my aunt left me this wagon, 100k miles, love the car in lots of ways but the repair costs just choke me. So, the mechanic in me emerges. Had a code pulled, 1171 lean running by corner garage, thats all he could tell me. But, the symptoms are definitely O2 sensor, which I believe is regular maintenance anyway. Question: can't be that hard to replace myself, should it? And, is it OK to use the universal sensors, much less money. Thanks to anyone that can help. Nick

 

Check for vacuum leaks first.
DO NOT USE UNIVERSAL sensors Volvo's hate them. Buy direct fits form FCPgroton.com