Ford Focus Forum, Ford Focus ST Forum - View Single Post - Help! 2003 Ford Focus ZX5 - O2 sensor
View Single Post
Old 10-02-2012, 07:16 PM   #14
Focus Enthusiast
J0EC00L's Avatar
Join Date: Jun 2011
Fan#: 86480
Location: Erie, PA
What I Drive: 2001 Ford Focus

Posts: 302
FF Reputation: 1 J0EC00L Good Standing Member
Buy-Sell-Trade Rating: (5)
Also check all your vacuum lines. IAC is a good possibility. Clean the throttle body and IAC. Also, I second the Bosch O2's, my focus does not like them. I replaced 3 1 year before I went to a different brand. I had a similar issue with poor idle and CEL. I cant remember the code though. Mine was a vacuum leak.
J0EC00L is online now  
    Reply With Quote