Focus Fanatics - View Single Post - The duratec long tube headers fit!!! (no check engine light)
View Single Post
Old 04-25-2012, 03:01 PM   #89
st falcon
Focus Addict
 
st falcon's Avatar
 
Join Date: Nov 2011
Fan#: 92343
Location: Livonia, MI
What I Drive: 2012 Blue Candy HATCH SEL

Posts: 1,368
FF Reputation: 3 st falcon Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by FocusBoy58 View Post
still no check engine light and heres my theory... The Cats o2 sensor is put in one of the banks of the pipe and not reading all 4 so it doesnt show enough to make it go off. Or maybe the car just burns that clean.
It is direct injection and has a cleaner (more efficient/complete burn) as you likely know...but I think the first guess is correct, or at least a part of it. If it were really burning that clean without a cat they would have saved the money and just deleted it for you.

Nice work here FB, glad to have the info!
__________________
2012 Focus SEL Blue Candy Metallic

1996 Bronco XLT 351W
Cant wait for Summer when I pop the top!!
st falcon is offline  
    Reply With Quote