P1456 Evap Emission Control System leak - Drive Accord Honda Forums | radio-pro.ru
LinkBack Thread Tools Search this Thread Rating: Thread Rating: 3 votes, 5.00 average. Display Modes
post #1 of 5 Old 02-08-2013, 03:27 PM Thread Starter
2nd Gear

Sonya in TX's Avatar

Join Date: Jun 2012
location: Clear Lake, Texas
Posts: 56
Thanks: 8
Thanked 0 Times in 0 Posts
Thumbs up P1456 Evap Emission Control System leak

For years I've had the CEL come on and the code was p1456 (evap emission control system leak. Every time I took it to my Honda dealership for service, they would conduct their diagnostic test ($97) just to tell me that there is nothing wrong with the car, and I should just tighten the gas cap, "click it at least five times", said the service mechanic.

Recently the error code came up more frequently, so I decided to search the internet for a better solution that would provide a fix that would kee pthe CEL from illuminating.

I found information from another forum about replacement parts that have do do with the fuel pipe system. The things to replace are in front of the drivers side rear wheel.

Jack up your accord to replace the:
1 - canister set
2 - solenoid valve set
3 - canister vent shut valve
4 - canister filter
5 - two way valve
6 - vent pressure sensor

My guess is that those parts (senors, valves, canister) just wore out with age. My 1998 Accord has 166K miles on it. I cleared the codes and so far, I've driven 600 miles and no more CEL with the p1456 error code. I'm a happy camper. Parts were about $300 but well worth the life of my car. It will be 16 years old in July.

Sonya in TX is offline

post #2 of 5 Old 02-11-2013, 05:30 AM
6th Gear

nehonda's Avatar

Join Date: Sep 2007
location: US Midwest
Posts: 1,634
Thanks: 2
Thanked 43 Times in 42 Posts
You need to find another shop which will do a more complete test per the Honda service manual. For $97 I expect your dealer just hooked up the diagnostic scanner and checked for codes. They should run a smoke test to find the leaks.

Dont start throwing parts at it till you know the problem. It could be something like a hole in the gas tank like this other member.
Changing the Fuel tank on a 02 Accord, Have some Questions

2000 Accord SE I4 F23A1 Auto - Sold miles & 10 years ownership
1998 Accord LX I4 F23A1 5 speed - sons DD in DC
1987 Accord LX 5 spd Owned for 17 years sold
1986 Accord LX Auto Totaled miles
1983 Accord LX 5 spd My Second Accord traded in
1978 Accord LX 5 spd My First Accord sold 100k
nehonda is offline
post #3 of 5 Old 02-11-2013, 02:17 PM Thread Starter
2nd Gear

Sonya in TX's Avatar

Join Date: Jun 2012
location: Clear Lake, Texas
Posts: 56
Thanks: 8
Thanked 0 Times in 0 Posts


It could have been more than what I did to my car for sure. What I wrtote in my original post completely cleared the problem, as no other codes came up. It was pricy, but worth it. I have a great scanner now (Actron 9580) and it has more than paid for itself over time.
Sonya in TX is offline

post #4 of 5 Old 02-12-2013, 01:29 PM
3rd Gear

Join Date: Apr 2012
Posts: 188
Thanks: 0
Thanked 5 Times in 5 Posts
I have the exact same problem. If your gas cap is not an OEM Honda gas cap, it will throw the code all the time. Even if you have the stock cap, replace it with an OEM Honda cap from the dealer. Yes it will be more expensive, but that is the same issue I have. I put on an aftermarket, Murray I believe, and it throws the code all the time. If I pull the cap off and put it back on and tighten it until it clicks like 10 times, the light will go off. Apparently, honda's only like Genuine Honda parts and it will most likely keep throwing the code until you get an OEM replacement.
DJR is offline
post #5 of 5 Old 02-12-2013, 05:00 PM Thread Starter
2nd Gear

Sonya in TX's Avatar

Join Date: Jun 2012
location: Clear Lake, Texas
Posts: 56
Thanks: 8
Thanked 0 Times in 0 Posts
OEM gas caps are still cheap....
Sonya in TX is offline


Quick Reply

Register Now

In order to be able to post messages on the Drive Accord Honda Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
The answer to the random question may be found under the Off Topic section of the forums and in the "Drive Accord Forums" category.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to

Related pages

code p0335tsb technical service bulletintoyota corolla vs honda accordresonator vs catalytic converterprime 1200.1integra egr valvehow to unlock honda crv radiodigital odometer fraud6mt transmission1991 honda accord mufflerhonda accord rimsbrake rotor stucksamson true dual exhaustacura xdscar shakes over 60good coilover brandsground control coilover sleevesfront end alignment cost at walmartpaint lug nutshow much is a clutch replacementhonda 5 lug bolt patterna1 cardone tech lineaccelerator pedal stuckantifreeze for honda crv2002 honda crv radio code resethonda odyssey vsa light99 honda civic fog lightshonda accord steel rimsbrakes groaningpirelli directional tireshow to unlock a honda accordxxr 531 19x8.5samsung all share cast donglereplace tpms batteryhondapartsdealsbest iphone car cradlehow to reattach car headlinerkicker l5 vs l7check transmission fluid honda accordhow much does it cost to repaint a carhissing sound from carhow to use meguiars da polisher2006 honda accord headlight bulb18x9 5 rota gridshonda bumpers replacement2004 honda accord lowering springsradio code vin numberpainted brake calipersh22 fuel injectorsbrake rotor grindingyokohama avid envigor canadareplacement glass for passenger side mirrorautozone hid kitswhy does my car shake at 50 mphwhere to buy honda atfgorilla wheel locks reviewmavis tire warrantymugen shift knobchange transmission fluid honda accordremove headlinerhow much is a full synthetic oil change at firestone2008 honda accord coupe 4 cylinder reviewac overchargedk20 intakexenon depot2004 honda civic ex coupe mpgwalmart.com batteriesrotors and brake pads costsolenoid honda accord2007 honda accord coupe accessorieshonda manual transmission fluid alternative2004 honda civic upstream o2 sensor2006 honda accord headlight bulbalpine aux cable best buycomptech sway bartein coilover wrenchacura extended warranty refundscion tc with frs wheelsntk o2honda glass replacementhow much does it cost to replace a headlineraero turbine 2525 muffler