P1456 98 Honda Accord w/Ground issue?

[@rockyragoo7838]

It’s most likely the ignition wire (the ignition barrel) needs to be changed to confirm that just turn car on then wiggle the key if the car turns off then that’s your problem

[@DanA-gl4cn]

Look like your ignition switch was bad I did mine 2 times Honda has an updated part I think. And the p1456 I replaced gas cap did not come back in my case

[@refugioasencio7216]

I have a 2000 Honda Odyssey change the vent valve and it still doing the same thing we did the smoke machine not leaking

[@krisredwood]

Refugio Asencio so i should look at replacing the vent valve then?

[@Ionlyexistpardner.]

what causes the p1456?

[@krisredwood]

there's a leak somewhere in the vacuum line, but we discovered the real issue was a fault with the ignition key assembly. replaced that, and everything was fine. sorry to get back to you so late, but i wanted to ensure it was an actual fix that was lasting.

[@brittc3658]

Sorry you all bad is home

[@BraveHeart2-16]

Jackinthebox2502 I have the same problem now. I put gas in the car and it evaporates slowly. Here is a Honda tec forum honda-tech.com/forums/honda-accord-1990-2002-2/98-accord-problem-code-p1456-2460060/