Honda Civic (2001 - 2005) Coupe / Sedan / Hybrid (Includes Acura EL)

P1457 Code???

 
Old 05-14-2019, 04:07 AM
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Icon5 P1457 Code???

I own a 2003 Civic LX Coupe with only 89k miles. I am getting a P1457 code and have replaced the fuel cap and the Vapor Canister Vent Solenoid. (EVAP two-way valve/bypass solenoid valve) and the code P1457 continues. Any of you here have any ideas what I should try next? I have no way to perform a smolke leak test. Going crazy here in NH.
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Old 05-14-2019, 05:18 AM
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Default Re: P1457 Code???

Youve replaced the two most common failure points of the EVAP system, at this point your either gonna have to pay someone to smoke test it, or throw parts at it until it goes away.
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Old 05-14-2019, 08:51 AM
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Default Re: P1457 Code???

Usually replacing the by-pass (canister) shut valve (CVS) and canister with OEM Honda parts solves the P1457 code.

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Old 05-14-2019, 09:31 AM
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Default Re: P1457 Code???

The same solenoid that you replaced on the canister exists under the air filter housing in the engine bay. If its not that then all that's left are the hoses or their connections.
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Old 05-14-2019, 10:51 AM
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Default Re: P1457 Code???

You're probably correct, dammit! Thanx
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Old 05-14-2019, 10:53 AM
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Default Re: P1457 Code???

I was thinking (albeit with my tiny brain) that the cannister might also need replacing. Agree? Thanx
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Old 05-14-2019, 10:59 AM
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Default Re: P1457 Code???

thetut. I'll check that. Thanx
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Old 05-15-2019, 06:39 AM
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Default Re: P1457 Code???

Canister gets replaced as the bolts are rusted onto the valve and easier to just replace it.
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Old 05-15-2019, 08:55 AM
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Default Re: P1457 Code???

This youtube video will give you an idea of how to find and replace the solenoid. It's a little jumpy and hard to follow but it helps.

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Old 05-15-2019, 09:11 AM
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Default Re: P1457 Code???

NDNV Luckily the bolts holding the valve to canister were easy to get off & re-usable. Does the canister also go bad and is a possible P1457 code spitter?
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Old 05-15-2019, 09:17 AM
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Default Re: P1457 Code???

thetut Thank you. Is this valve also a possible contributor to the P1457 code?
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Old 05-15-2019, 12:55 PM
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Default Re: P1457 Code???

Yes.
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Old 05-15-2019, 04:30 PM
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Default Re: P1457 Code???

Let us know if it helps.. . I'm chasing the same demon in my 04... gonna swap this part out first as it's easiest (minus the fuel cap which I replaced the O-ring on my original)
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Old 05-16-2019, 02:06 PM
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Default Re: P1457 Code???

thetut. In the process of changing out the solenoid (rains came). First thing I found when taking off the air cleaner was 2 handfuls of chewed acorns and shells.. I live in the country btw. I have some of the same crap in the canister in front of the air cleaner assembly. I shook it every which way possible and there is still a little left that I can't get out. Is that canister a replaceable part? Thanx again.
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Old 05-17-2019, 06:28 AM
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Default Re: P1457 Code???

Can you post a picture showing the part?
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Old 05-17-2019, 06:42 AM
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Default Re: P1457 Code???

I am talking about the by-pass (canister) shut valve (CVS) and canister UNDER the car. You have already replaced that with OEM Honda parts, yes?
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Old 05-17-2019, 09:16 AM
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Default Re: P1457 Code???

thetut: It's the good sized box (similar to the air cleaner box), I think its called a cold air resonator. I'm pretty sure a couple chips of acorn mess ain't doing no harm. Air comes in thru intake tube-then to this(resonator)- and into the air cleaner. Sorry, no pics.
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Old 05-17-2019, 09:23 AM
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Default Re: P1457 Code???

NDNV: Yes. The screws holding the shutvalve came off easily so I left the original canister in place.
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Old 05-18-2019, 04:41 AM
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Default Re: P1457 Code???

I have this same problem on my '05 LX. I know for a fact that my canister is air tight, the solenoids there are air tight and working. Canister purge valve, canister vent solenoid all work using a 9v battery as a power to test. The only thing i have left to check is the EVAP tank pressure sensor and its connections. This requires to drop the gas tank. So i wont be checking that anytime soon. The following link is what i think the problem is.

https://www.autozone.com/fuel-delive...40607_0_0_9501
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Old 05-18-2019, 04:54 AM
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rromero5: I sure hope I don't have to do that. Good luck and please let me know how it goes? Johnny
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