P0455 and P0401
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Junior Member
Joined: Nov 2002
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P0455 and P0401
I am at the end of my rope. I've been to two different shops with no success. I get both P0455 Emission Control System Leak Detected (Gross Leak) AND P0401 EGR Flow Insufficient Detected. What do both these codes have in common???
Senior Member
Joined: May 2002
Posts: 194
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From: New Brunswick, Canada
For code P0401:
https://www.f150online.com/forums/se...der=descending
For code P0455:
https://www.f150online.com/forums/se...der=descending
https://www.f150online.com/forums/se...der=descending
For code P0455:
https://www.f150online.com/forums/se...der=descending