PO455???

[TBapp3]

So today the ses light came on in. the sixxer, I scanned it for the code and the code PO455 comes up.....
We had the same code last year around the middle of the summer and got a new gas cap witch made the light go off.... O yea there is also a check fuel cap light that did come on last year, then it came back last week.... I unplugged the battery just for the heck of it and now the service engine soon light came on as said above....

Any advise or info on the topic would be gratefully appreciated!

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[TBapp3]

Bump....


Any one have any info?!?

 

[ford20]

I believe it is an evap system leak maybe a leak in the fuel pump sender from what I have heard happen.

 

[TBapp3]

The evap leak is also what I came up with when I looked it up a bit but there is no sign once so ever of a leak....this really blows though cause the car needs to be inspected this month.....never a dull moment... smh

 

[ford20]

I think they make evap leak detectors but I also think they are expensive.

I would really have to think that there is a large leak somewhere given the fact that the check engine light is still on and the gas cap has been replaced. I know it seems like a stupid question but the seal around the gas cap is still good?

 

[TBapp3]

Yes the seal seems to be brand new still, the cel is on but was off after getting the new cap for a while (months)....so it is weird...Amy idea where I should start if I'm looking to fix this like looking for the leak...when I said its not visible leaking I mean there is know sign from where the car is ALWAYS parked....I'm stumped

 

[TBapp3]

O yea, I did just get a cap from advance....my dad told me that sometimes there know good that I would need a ford one specific from the dealer... But then the cap seemed to work, maybe not?

 

[ford20]

It may be something small, as I said they do make test kits but they are like $500-$1000. You can check to make sure all the fuel lines are on there nice and snug, the code shoes that there is a large leak from somewhere in your Evap system but it doesn't really give any clue as to where. If all the hoses are seem tight and you still can't find a leak take it to a mechanic that has a evap leak detector. That is just my .02

 

[TBapp3]

Any other input s on this??

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[onlycodered]

Yeah I'd recommend having the EVAP system tested by a mechanic. They can do the smoke test to check for leaks. If there's no leaks they should be able to point you in the right direction. Had the same issue with my old Civic and I ended up having to replace a few parts before I found what was causing it.