Evap system error code P1457
08-08-2018, 09:50 AM
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Evap system error code P1457
The evap system has an issue, I've tried changing the gas cap. That doesn't work, I'm blowed the purge valve and selinoid and heard a click, so I didnt assume they had an issue, where else will the car be getting an error from as I don't know where else to search.
08-08-2018, 10:03 AM
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08-08-2018, 10:45 AM
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Re: Evap system error code P1457
the evap box itself could be full of junk.
the selonoid can be bad but....getting a code.
go to junk yard and get an xtra for $4.
did you verify that all hoses were good? if there is a leak you will have a code
the selonoid can be bad but....getting a code.
go to junk yard and get an xtra for $4.
did you verify that all hoses were good? if there is a leak you will have a code
08-08-2018, 10:48 AM
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Re: Evap system error code P1457
How can I use the seafoam in this case, spray it in the intake of the car. And also I sprayed the lines with water but there are not bubbles, what other way can I use to diagnose the lines, because the leak maybe be very small and hard to see
08-08-2018, 10:55 AM
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Re: Evap system error code P1457
i would use seafoam for sure. through brake booster. sip it very slowly if you want the motor to keep running while doing it.
watch a youtube video on it.
you can drown the motor out and it would be fine still.
if it was me i would first. seafoam. then replace seloniod
watch a youtube video on it.
you can drown the motor out and it would be fine still.
if it was me i would first. seafoam. then replace seloniod
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08-08-2018, 11:46 AM
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Re: Evap system error code P1457
the big black round thing on the firewall. has a brake master cylnder attached to it. remove the vacuuum line on it.........OR any vacuum line on the motor...to suck up fluid. doesnt have to be the BB.
feed it into the motor.
feed it into the motor.
08-08-2018, 12:06 PM
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Re: Evap system error code P1457
it cleans carbon deposits in the motor and other components.
yes running(to create vacuum) or take off parts to soak them like injectors.
the canister if its full of yucky it should just get replaced.....or deleted
yes running(to create vacuum) or take off parts to soak them like injectors.
the canister if its full of yucky it should just get replaced.....or deleted
08-22-2018, 06:01 PM
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Re: Evap system error code P1457
I have codes P01456 and P01457 on my 98 Civic Ex. I have replaced the solenoid bypass valve, the charcoal canister along with the canister vent shut valve. Both codes came right back. I have the two way bypass valve, so it will be next to go on. If that doesn't work then I guess I'll move back under the hood and replace the three way valve part #17320-S02-L01, the purge control solenoid valve part #36162-P2M-A01 followed by the fuel pressure regulator assembly part #16740-P2K-003. If none of these fix the issue I guess the very last thing to do is check all the hoses for leaks and if need be replace the ECU. After that I'm giving up on trying to fix this problem. I hate to spend the money, but the car still gets over 30 mpg. replacing the parts is also cheaper than a paying car payments again.
08-23-2018, 04:11 AM
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Re: Evap system error code P1457
ECU just doesnt brake like that. not the FPR(fuel pressure regulator) stop replacing stuff that isnt broken.
check the lines for leakage.
or move to real America and rip out all the evap junk and just drive it
check the lines for leakage.
or move to real America and rip out all the evap junk and just drive it
08-23-2018, 08:35 AM
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Re: Evap system error code P1457
if you google evap line diagram for your car you can find it.
other than that you will have most likely 1 vacuum fitting to your motor. plug it.
then remove all lines pertaining to it. the gas tank vent like is metal to the engine bay. just bent it downwards to vent.
other than that you will have most likely 1 vacuum fitting to your motor. plug it.
then remove all lines pertaining to it. the gas tank vent like is metal to the engine bay. just bent it downwards to vent.
08-23-2018, 12:26 PM
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Re: Evap system error code P1457
Yea, I've looked at the diagrams more times than I can count. The whole point of trying to fix the problem is to get the spend more money light to turn off, which has been lit for the last 3 years. If you delete all the evap system parts, that bright yellow reminder is still gonna be there because the car is still running off a stock ECU that is still trying to pull data at sensor points that no longer have the components attached to them.
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