P0420 code
02-21-2012
#1
Registered!!
Thread Starter
Join Date: Nov 2011
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
Rep Power: 0 
P0420 code
Hi guys,
I have a 2008 Civic coupe with 43 000km on it. I have a P0420 code that I cleared 3 times and it always came back. Also, I noticed that the check engine light comes back when I'm on the highway. Last week, I replaced my ETC sensor and it didn't fix the issue. Finally, the gas mileage isn't very good for a Civic (220km = 23L). Do you guys think that the problem is the O2 sensor or the cat?
Thank you for your help!
I have a 2008 Civic coupe with 43 000km on it. I have a P0420 code that I cleared 3 times and it always came back. Also, I noticed that the check engine light comes back when I'm on the highway. Last week, I replaced my ETC sensor and it didn't fix the issue. Finally, the gas mileage isn't very good for a Civic (220km = 23L). Do you guys think that the problem is the O2 sensor or the cat?
Thank you for your help!
02-21-2012
#2
If you think a good mechanic is expensive, try hiring a bad one
Re: P0420 code
What is an ETC sensor, and why would you throw such a part at the problem?
Read your warranty. Cat is covered for 8/80 in the US.
Whatever CAUSED it to go bad might not be covered though.
Misfire can kill a cat in a hurry.
Read your warranty. Cat is covered for 8/80 in the US.
Whatever CAUSED it to go bad might not be covered though.
Misfire can kill a cat in a hurry.
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
Civic15
Mechanical Problems/Vehicle Issues and Fix-it Forum
18
09-19-2017 07:48 PM
Dangerousjordan
Mechanical Problems/Vehicle Issues and Fix-it Forum
6
07-30-2015 11:19 AM
jessica19699
Mechanical Problems/Vehicle Issues and Fix-it Forum
9
07-29-2015 05:51 AM
Green02civic
Mechanical Problems/Vehicle Issues and Fix-it Forum
13
07-27-2015 10:48 PM
