Question about 2002 Subaru Outback
I have a 2005 outback wagon. A few weeks ago I had the check engine light come on and had the code scanned and was given a long list of things that it could be. The code was reset and I drove about 500 miles and the light came on again. I drove about 50 more miles and the light went off on its own. It stayed off for 3 days and came back on tonight. I had it scanned and asked for the code this time. I was told that it was P0420. What does that mean and why does it come and go when ever it feels like it.
PO420 is for catalyst system efficiency below threshold. I have seen this many times on vehicles from 96 up. It is due to the system not burning the fuel at what it considers an acceptable rate. Todays fuels are not the best we could have for internal combustion and sometimes it will set off the light. I tell my wife she is too easy on the car and it's not burning the fuel proper. After a couple days it goes out. It will not harm your engine and should go out again. Fuel system cleaning additive will also turn of light. Good luck and enjoy your Subbie. Greatest car ever Built.
Posted on Jan 31, 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.
the service is completely free 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:
Jun 24, 2012 | 2007 Subaru Impreza Outback Sport Wagon
Sep 29, 2011 | 2005 Subaru Outback
Oct 04, 2010 | 2007 Subaru Impreza Outback Sport Wagon
Jan 12, 2010 | 2000 Subaru Outback
Nov 13, 2009 | 2000 Subaru Outback
Jun 18, 2009 | 2007 Subaru Impreza Outback Sport Wagon
May 20, 2009 | 2007 Subaru Impreza Outback Sport Wagon
Apr 18, 2009 | 2003 Subaru Outback
860 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: