Today i replaced the O2 senson on my 1989 560sl in the process i fond that the sensor was not hook up the cables were just not connected, i will try it an see if it runs diferent now, the question is should the c/e ligth be on, acctually it looks like is not working, do i have to take the wheel of to get the cluster out to check the bulb?. I would gess the reason the did it is couse we did not have unleaded until a couple of year ago an you know what happens to the cat if you run lead. any ways i am using unleaded now but i still don have a cat, an not thinkig about gettin one.

__________________
89 560SL
78 172N
01 CBRXX
98 EV11