Question about 2011 Ford Fusion
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: 2006 Ford Fusion 2.3L I4
The check engine light won't go out unless you (1) clear the code with a tester or (2) give the computer a chance to determine the problem is no longer there. It has to go thru several test cycles detecting no problem before the computer will turn the light off. You could also have another problem causing an evaporative emission leak (like a vent hose for instance).
Posted on Jun 06, 2011
Common Problems That Trigger the P0455 Code
This is a link to a Ford Motor Company PDF file that explains this fault in great detail and is worth reading and studying.
Posted on Jun 06, 2011
Sorry, but there is no "sensor at the fuel cap". Therefore, there is no code that says "sensor at the fuel cap". There is, however, a Diagnostic Test Code (DTC) That indicates a possible problem with the fuel cap.
(HINT: When you want information on codes, it is usually wise to include the code number that you are getting - that way, it can be looked up, instead of GUESSING at what the problem is from a code description that some generic code reader is telling you..)
DTC P0457 is defined by SAE J2012 as "Evaporative Emission System Leak Detected (fuel cap loose/off)"
At this point, I am ASSUMING this is the code you got.
This DTC is set when the Powertrain Control Module (PCM) detects that there is an in-tank pressure drop that is more than 7in. H2O within 30 seconds directly after refueling, or there is excessive purge (fuel Vapor) flow more than .06 lbs. per minute. Possible causes are:
> Fuel filler cap not installed after refueling
> Fuel filler cap loose or cross-threaded
There are other malfunctions that can also cause this code to set, but it will be accompanied by other codes indicating other possible failures.
If there are no other Evaporative Emissions System codes present, then there is most likely a problem with the way your fuel cap was put on the last time you got fuel.
Check your fuel cap and make sure it is on correctly and is tight.
Posted on Apr 19, 2012
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