Engine Performance problem
2002 Honda Accord 4 cyl Two Wheel Drive Automatic 111000 miles
My name is Kawsar. I just bought a 2002 Honda accord. It has a check engine light on. I went to six different local mechanics. Three of them told me I need to replace the catalytic converter and the other three told me I need to change the Oxygen Sensor. The code was retrieve was P0420 (Catalyst System Efficiency Below Threshold (Bank 1). At this point I really don't know what should I do like if I spend money on cat or oxygen sensor. If I need to replace the oxygen sensor, should I replace front one (upstream) or should I replace the rear one (downstream) or should I replace both. Any good advice or suggestion will be really appreciated. Thanks in advance.
have the same problem?
Tuesday, August 31st, 2010 AT 12:37 AM