Ford Focus Forum, Ford Focus ST Forum - View Single Post - two codes EGR I'm guessing...
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Old 01-30-2006, 02:04 PM   #6
TM3
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Join Date: Dec 2004
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Location: DFW
What I Drive: 2004 EAP SVTF

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I've been pulling the same code (P1406). This has happened before too, right after I installed my SVT header, then after I installed my blower. The first time, a new DPFE sensor fixed the problem; but the second time around, I put in a new DPFE sensor and its still throwing the code. Both my upstream and downstream hoses are in good shape, and are plugged pretty tight, so I was thinking that the EGR Tube might have some build up on the inside that might be causing the sensor to get a false reading.
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