Ford Focus Forum, Ford Focus ST Forum - View Single Post - CEL P0171 (BANK 1) help
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Old 01-24-2013, 07:55 AM   #9
focusSE2002
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Join Date: Jan 2013
Fan#: 108993
Location: LA, CA
What I Drive: 2002 Black SE

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Quote:
Originally Posted by sleepyboy View Post
Should be by the oil filter, all bank 1 means is the first bank of cylinders on a v 8-6 motor, on yours it just means the all 4.
Wow you guys are awsome with the quick response, as far as the CEL, i have read that after dropping a valve seat particles from it can get into the egr and contaminate it, Maybe just cleaning it off will help? Also considering replacing the PCV valve and hose, dpfe sensor and clean off or replace my MAF sensor, what do You guys think
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