I have a 2001 Toyota Camry LE w/124k miles(Original Owner) and the check engine light came on about a week ago. I took it to a auto parts store and they checked the computer with a code reader. The Code P0420 appeared and said 'Catalyst Efficiency Below Threshold, Bank 1'. ...
My 2000 Toyota Camry did not pass smog. I live at Concord, California. The technician asked me to do a full drive cycle which I did for 2 weeks. I almost drove 100 miles. I am using OBD 2, From the 2 Incomplete it went to down to one. My check engine light is off. The techni...