Well I have about 100k on the engine and have never had the Oxygen sensor replaced and am just curious what some of the symptoms are of it going bad! I know the computer will go into limp mode and the car will still drive!
My car seems to be running rich when cold and smoking ( or bad valve seals) and my car is getting bad gas milage! also my car seems to be pinging a little under light acceleration! any help would be appriciated Adam also my car doesn't burn Oil!