I have a 2005.5 Volkswagen Jetta 2.5L engine code BGP. My check engine light came on a little over a year ago and it ended up being a P0420 code. I took in and was told I needed a new catalic converter. I had it change. A few months later the check engine light came on again. I took it once again to a mechanic and was told it was a P2626 code and the bank 1 o2 sensor needed to be replaced. I replaced the sensor and a couple months later the check engine light again came on. I connected a scan tool and it was again a P0420 code. The catalic converter I had changed a year ago was under warranty so it was again changed a month ago. A few days later the check engine light once again came on with a P2626 code. I reset it then a couple days later another light with a P0420 code. Reset again a day or so later another light with a P2626 code. Now over the last month the light has been on and I continue to reset it every few days and the P2626 code is the only one that comes up. Any advice of the culprit of the problem would be greatly appreciated.
Friday, April 20th, 2012 AT 2:12 AM