I had the CEL read at the local Autozone on my 99 Accord EX V6 with 104K miles on it and it gave me code P1457 which is a leak in the EVAP system. I read a lot of posts about and saw that the CVS(or Vent shut valve) is a very common problem so I went ahead and purchased a new one and replaced but that damn light came back on again.

Any other suggestions to get rid of that evil light cause I really need to get an emissions inspection. .

Please Help.

 

Did you disconnect the battery for a few minutes and let it reset?

 

Yep. I disconnected it for about 15 minutes. I'm thinking of taking the hit and bringing it in to the dealer.

 

Search the archives for a big description that I wrote. The CVS valve may be the most common failure (mine was) but there's a dozen other things you can check. Would have been a good idea to diagnose this before buying parts...

 

CVS probably wasnt the problem than

 

That happened to my gsr twice and I'm almost positive it was my gas cap. Try opening it and then closing it. The first time it came on was the day after a gas fill. I went to autozone and they cleared the code for me. If you have a faulty gas cap then you'll get that code. Then a month later it came on again. I just cleaned the rubber seal around the cap, pulled the ecu fuse for a 10 mins and it never came back again. Remember I think it's suppose to be like 3-4 clicks and that's it.

 

The gas cap is supposed to throw P1456, not 57...

 

Oh yea yea that's right....what the hell made think 47 was the gas cap. I threw the code a while ago so i guess I confused the 46 & 47. :thinking:

 

On my GSR swapped civic, it turned out to be the PCV valve hose had come out of the grommet so don't forget to check that.

 

go to the first page follow the directions i gave to Hyprspeed's post,, about code p1457 ...