Hey there -
So my check engine light came on about a week ago so I hooked it up to my diagnostic scanner and the code "P0420 Catalyst System Efficiency Below Threshold (Bank 1)" popped up. It's just confusing because with every code, there could be are multiple possiblities of what the problem should be. I was wondering if you might be able to help me narrow down my search. I just bought this 1998 Subaru Outback about a month ago, and it has been driving a little bumpy and shudders occasionally (usually when it's shifting from 1st or 2nd gear). Any suggestions?
have the same problem?
Friday, March 20th, 2009 AT 6:43 AM