Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Code P0420, the saga continues...
View Single Post
Old 04-23-2019, 11:32 AM   #5
Focus Rookie
Join Date: Sep 2013
Fan#: 118839
Location: London, Canada
What I Drive: 2012 Ford Focus SE Sedan

Posts: 13
Points 9, Level 1
Points: 9, Level: 1 Points: 9, Level: 1 Points: 9, Level: 1
Level Up 17% Completed
Level up: 17% Level up: 17% Level up: 17%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 Djdylan Good Standing Member
Buy-Sell-Trade Rating: (0)
Originally Posted by zehkaiser View Post
Originally Posted by Djdylan View Post
Would also love to know if its actually the cat that's gone bad or just sensors.

I have 191,000KM and CEL just came on with this code.

O2S1 replaced at 160,000 KM


Please see recall #18S32
Did you replace the sensors? I've had this intermittent CEL since about 102k mi and thought it was related to the recall you mentioned. I wasn't that lucky, and will be replacing my sensors to see if the CEL goes away.

After about 1 000km CEL went away and never came back.

Hopefully Ford comes with a fix for this recall soon though
Djdylan is offline  
    Reply With Quote