Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Trying to Install
View Single Post
Old 11-19-2012, 06:51 PM   #10
Focus Fanatic
Magus2727's Avatar
Join Date: Feb 2009
Fan#: 62897
Location: Salt Lake City, UT
What I Drive: 2001 MB ZX3, 2004 SY SVT ZX5

Posts: 8,034
Points 14,096, Level 77
Points: 14,096, Level: 77 Points: 14,096, Level: 77 Points: 14,096, Level: 77
Level Up 12% Completed
Level up: 12% Level up: 12% Level up: 12%
Forum Activity 21%
Activity: 21% Activity: 21% Activity: 21%
FF Reputation: 20 Magus2727 Great Standing Member
Buy-Sell-Trade Rating: (2)
^^^ this. The second 02 just does a comparison between the per cat. Its to measure if the cat is working. To my understanding it does not play in any way to fuel mapping or anything else except if the CAT is working. You can get 02 bungs from shops to weld in. The EGR is harder unless you canabolize it off your old system. Its a weird thread type to match up. The bung just gets installed before and after in the welded on straight pipe sections.
2001 ZX3 Zetec - Rebuild "The TICK" (
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2004 ZX5 SVT - Restoration "Code Name Rocket" (
Magus2727 is offline  
    Reply With Quote