2007 civic ex sedan with engine code p0420
#1
Registered!!
Thread Starter
Join Date: Jul 2011
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
Rep Power: 0 2007 civic ex sedan with engine code p0420
So my check engine light came on the p0420 code came up, have had some small oil loss, but none of it was leaking on the ground. Driving the car home after getting the code read i experienced a severe lack of power(cruise control wouldn't keep speeds up if i was going up the smallest of inclines). Is there anything i can try to fix this myself? the car has 98k miles on it
Thank you for any help
Thank you for any help
#2
Registered!!
Join Date: Jun 2011
Location: Chicago area
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
Rep Power: 0 Re: 2007 civic ex sedan with engine code p0420
P0420 is due to the computer not seeing correct readings from the secondary (downstream) O2 sensor. Have you already done the basic maintenance items like a new air filter and new spark plugs?
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
Xuhme
Cracked block early R18 Overheating
21
08-07-2023 03:40 PM
Civicchicky87
Idle Issues
5
04-22-2015 07:16 PM