2002 OBDII Error code PO456 | Ford Thunderbird forum club group 1955-2005 models

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2002 OBDII Error code PO456

  • Thread starter Thread starter walsh28
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walsh28

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Thunderbird Year
2002
Check engine light came on for the first time and using the FIXD OBD tester It said PO456 evap system leak detected. I tried to find the evaporative emission control system on the dvd ford disc but could not find it ,the car is a 2002 bird 53,317 miles. Any help would be appreciated. Thanks

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Last edited by a moderator:
walsh28 said:
Check engine light came on for the first time and using the FIXD OBD tester It said PO456 evap system leak detected. I tried to find the evaporative emission control system on the dvd ford disc but could not find it ,the car is a 2002 bird 53,317 miles. Any help would be appreciated. Thanks
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I had similar code on my 2003 that has 60k; Before attemptIng a repair, I first simply erased the code with my scanner and the check engine light went off; that was several months ago and the check engine light hasn’t returned; car did run great before check engine light appeared and still runs great after the erasure; I also gave the gas cap an extra turn to make sure that wasn’t the problem and throwing a code. Good luck! Ron H
 
Thanks I will take that into consideration as the car runs fine before and after I have erased the code. I will do a wait and see if it reappears or if the car begins to run differently. Thanks for your input. Bill W
 
2003 8000 miles Check engine lite on. Bought a orb tester, code po442, I reset the the code,
Lite still off. As time goes by we’ll see if it comes back. 300 miles still okey.
 
At This time and after lubricating the gas cap gasket I have not experienced the trouble code again.
 
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