As I have stated before, I have a 1986 930 that I have removed all smog equipment, and replaced the cat and muffler with an early 80's euro. (Single pipe, I never liked the dual pipe). I just basically wanted to get rid of all the heat that the cat generates and the smog equip to make servicing easier. I don't track the car, and for right now not going to make any other changes/enhancements. I always run prem fuel. My questions are for the effect of the O2 sensor and CO adjustment. I currently have the O2 disconnected and the CO at 2%. I'd like to know the pros and cons of:
1)Setting the CO back to specs .6 +- .2 and reconnecting the O2
2) Leaving the O2 disconnected and increasing the CO to 3-4% per recomendations from this board.
What effect does the O2 have on setting the CO?
Gone:71,2,4 914's, 70T, 71T(RS),77S