After a small argument with the folks at Autozone they finally read the codes for my 1995 Thunderbird 4.6 One of the codes was lean code bank 2. If I read the answer on another thread correctly this code will clear with normal driving? I have only driven the car 50 miles in the past 6 weeks. The Autozone guy said to put some Lucas injector cleaner in it and I will have to admit the low speed stumble has disappeared and it seems to be running a little better. He said the other code was a factory emission system and would clear itself. Am I getting good info or just the run around? thanks for the help.