Question about 2001 Volvo S40
The P420 code is a catalytic converter efficiency code. I would very much suspect that the catalytic converter is bad. They have been failing lately at the flange for the flex pipe.
Posted on Jul 19, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Mar 03, 2015 | 2006 Subaru Forester
Jan 15, 2015 | 2007 Pontiac G6 GT Convertible
Oct 04, 2014 | 2003 Toyota Corolla
Sep 26, 2012 | 2000 Ford Mustang
Feb 13, 2012 | 1991 Toyota Previa
Jan 19, 2010 | 1999 Chevrolet Metro
Nov 05, 2009 | 2003 Toyota Corolla
283 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: