P1457 Honda Code - Evaporative Emissions Control System Leakage EVAP Canister System

I replaced the gas cap and the canister by the gas tank and the emissions light comes on after about 4 days, should I be worried? It is on a 2002 Honda Accord EX Code is P1457.

Why did you replaced those parts? if the light came ON after replacing the parts, then you should inspect the installation. A large leak could cause a fuel smell.

My check engine light popped on and the OBDII code read this (P1457) so I bought a new gas cap. The check engine light didn't go off after driving a full day and a half with it, so I returned the gas cap. Now, I'm wondering if I needed to do some sort of reset to clear out the code and if so how do I go about resetting it? Lastly, if the gas cap wasn't the issue what could it be; a sensor failure or something else like the vapor canister somehow got saturated and just needs to air out?

What model and year is your Honda? Since the gas cap didn't fixed your problem, you should start by checking the hoses connected to the EVAP canister.

2000 Honda Civic LX Sedan
I went and bought another new gas cap and had a friend who I just found out had an OBDII sensor on hand clear the code for me (Auto Zone won't do that), so now I'll wait to see if it gets re-triggered.
If it does get re-triggered I'll take back the gas cap and focus my attention toward checking the hoses that are connect to the EVAP canister (as you suggest). Would I be looking for wet or damaged lines? If it's not the lines can the canister itself be cleaned or do I need to get a new one?

You check for cracked or damage hoses, and it the problem is the canister itself, then you have to replace it.

Where is the canister located

What model and year is your Honda?

2001 Honda civic ex

The canister is behind the gas tank.

Ty

Have a 2004 Civic, replaced the upstream O2 sensor and all was good, day later new code for evap system general, reset and still comes back, any help?

Unless you disconnected something while changing the sensor, the O2 sensor has nothing to do with the EVAP system. Check for loose or damaged gas cap or loose hoses.

Hi, i had my 2000 accord chekup at firestone they reported p1457 code which is being discussed here. Where can I find canister for 2000 model

On the back of your Accord, above the rear subframe.

Where is the evap canister located on 2001 Honda accord ex and how much does it cost to repair

The canister is on underneath you Accord next to the fuel tank. Usually you cannot repair the canister, you have to buy a new one. The price depend on your vehicle and where you live.

Hi, My Mechanic changed the gas tank on my 1998 honda accord LX 4 cyl. Next day got a check engine light (P1457). the EVAP canister and the solenoid were changed 2 months ago and I hoping that is not the problem again. Two things he did not do was to shut down the battery and release the pressure by removing the fuel cap. I cried out in the inside when he did that but he was already pissed off with me for giving me advise on other things. Are there any specific things that any of you can suggest? Planning to take back to him in days.

Unfortunately there are many things that could trigger the P1457 code. Could be related to the parts he installed ( not correctly installed ) or new parts. What I do recommend is to have another mechanic inspect you vehicle.

I gave him the fuel tank. He did not change any other part. I think the issue Is he did not either connect all the fuel lines correctly/tight, or the issue is he should have disconnected the battery and release the fuel cap before starting the job. I am hoping for the latter and ws wondering if someone here would know about this.

Not disconnecting the car battery and not release the fuel cap pressure will not cause that problem.

Thanks..Went back to the mechanic and he said there was a vacuum hose that was disconnected. He showed me it was torn on the EVAP end and I bet it was not torn before he changed the fuel tank but did not want to fight with him. He connected to the EVAP side and taped it even though I told him I will get a new vacuum hose at my cost and he can install it. He said it was not necessary but I know I am going to pay for this in the long run.

Quick Question. How much does that Vaccum hose cost and what are the two ends it connects and how easy is it for me to change it? Dont have a ramp or jack stands.

BTW, I am looking around and dont see anything called a vaccum hose. The closest that looks familiar based on this diagram is the hose (part no 24) that connects to "filter, canister" : part no 9. http://tinyurl.com/hdfl4o5

There are many vacuum hoses and it's very difficult to order online. What we usually do at our shop, is removing the hose and take it to the autoparts and have them match it or you can get the hose from the dealer.

thanks...although do you think not having one of those vaccum hose plugged in could cause the P1457 code to show up ? He has reset it so I am counting the days before it shows up again.

The dreaded check engine light come back. I am going to buys that hose and give it to him today and hoping it is the torn hose that he taped in. All those reviews on the Web about the mechanic based on which I chose him. What a crap! The autozone guy is surprised thr mechanic would tape it.

Got a replacement hose (part no 17) for 3 dollars from autozone and had the mechanic change it. If this does not fix it, got a battle in my hands. I am surprised the car manufactures have a single evap code for thr numerous things that could go wrong there. Half a dozen parts and a dozen hoses and a single evap code. Could they not keep a sensor to every major part and capture the intake and outtake. Don't think that will cost thousands of dollars more.

battle continues...this time check engine came back after 48 hours instead of 24. Have reset it and have driven 150 miles today, but dont think it is just mileage. It is the drive cycles and overnight cooling down. Expecting one tommorrow morning or Tuesday morning which is when I go back to the mechanic. Might have to smoke test. Where can I find a cheap place to get this done?

Also, would the code be different if the fuel pump is not properly mounted on the gas tank or has issues?
Does 1457 mean only the EVAP canister/vapor canister/shutoff valve + the hoses connected to it?
Also, would I see fuel leak? or may be just vapors and not visible to naked eye?

Yes, if the there is a leak on the gas thank it could also trigger the code. You may not be able to see a gas leak, but you may able to smell the gas leak.

You could consider buying a home made smog machine: http://www.ebay.com/sch/i.h...

Thnaks...will probably buy one..dont think this would be my last EVAP check engine code.

Although, why did Honda not allow access to this part "VALVE, VENT SHUT (ORVR)" on the fuel tank, but allowed the slot to access the fuel pump. What happens if ORVR valve gets bad. Seems like I need to cut through some piece of metal to get to that. oh well!..as long as I dont have to drop the fuel tank again.

Finally, took to the dealership (identified a purge valve first and asked them for a second look and they said a small leak from ORVR valve and the tube . Have to drop the tank. The think I dreaded. Anyway to get this done from the trunk side. May be cutting a portion of the trunk? Also, where does the tube from the vent valve go to ? Connects to the EVAP straight away ?

I never try cutting the trunk to access the valve. The tube goes to the EVAP canister.

Here is an image of the valve:

Yep.That little thing about removing the tank is killing me.

I have a 2005 Honda Civic SE (Canada), and I just had the same thing happen to me! I replaced the upstream O2 sensor a couple days ago (in an attempt to fix code P0135) before going for an emissions test (license plate renewal time...). It worked, the Check Engine light turned off after a few (5) trips. I had the e-test done, passed despite my Evap system identifying as "Not Ready", and now the Check Engine light is on again, throwing code P1457. I cleared the code and am now waiting to see what happens next...

Did the light came back ON? Just make sure the gas cap is tight.

Yeah it came back after about three on/off cycles. I heard it's the "canister side" of this fault, not the fuel tank side. The cap's on good and tight, but I haven't exactly inspected the seal. Next thing on the list!

HI SO THIS CODE COMES UP ON THE COMPUTER
IVE ALREADY CHANGED THE CANISTER THE FUEL CAP AND THE solenoid . BUT THOSE THINGS HAVE NOT WORKED . WHAT HAPPENS IS THAT WHEN I GO PUT GAS AND START MY CAR UP IT WONT START UP I HAVE TO KEEP STEPPING ON THE GAS AND EVENTUALLY AFTER 1 MINUTE OF DOING THIS IT WILL REMAIN ON AGAIN. DO YOU ANY IDEA WHAT CAN BE MY PROBLEM????

What model and year is your Honda?
You should start by checking the fuel pressure.

Have gotten the p1457 code for a couple of years. Replace gas cap, all PCV valves, rusty steel lines and fuel lines. Still got code. Bought a pricey smoke generator - no leaks detected. Called tech support and when told him I had 330K miles on my 97 accord - he said honda keeps a vacuum on their engine crank case and valve cover and my engine was too loose to do so. He suggested just plugging the vacuum connections to the engine. Took 10 minutes and some rubber electrical tape - problem solved. Was told by a very good mechanic fuel tank had a leak - +$500. Engines never had this vacuum on them before - can't even see the tape.

Well did a longer/faster test run and p1457 is back. Also don't block vac lines to engine - lost almost quart of oil through the oil dipstick. Just made a mess.

Well it is now the fuel tank - this has been fun though!

Have you check the condition of the EVAP Canister?

Replaced all parts including evap cannister - got till april to get it fixed.

All solenoids and valves working smoke detector shows no leaks pressurized system scanner shows 1 kPa pressure is that enough pressure it never goes higher or lower

What model and year is your Honda?

Hi
I have 03 Acura CL with p1457, I've replaced the purge valve, shut valve on canister, and bypass solenoid still get code. I took to shop and they said it was a bad fuel tank vent valve. Would this cause p1457? $400 to fix does sound about right?

Thanks
Daniel

Unfortunately there are some test that needs to be done to determine what the problem is.

There is a factory service bulletin for that code that may be able to help you:

SYMPTOM
The MIL is on, and DTC P1457 [leak detected in EVAP control system (EVAP control canister system)] is set.
PROBABLE CAUSE
The EVAP bypass solenoid valve can fail due to corrosion. The solenoid valve may get water inside. If the water contains road salt, the solenoid windings could corrode, causing the valve to fail. In a few rare instances, the corrosion could be severe enough to cause an internal short in the solenoid valve, which could damage the ECM/PCM. If this happens, both the bypass solenoid valve and the ECM/PCM would need to be replaced.
Vehicles driven in the Northeastern part of the U.S. are more likely to have this problem because of the salting of roads during the winter months. Vehicles driven where salt is not used on the roads are much less likely to have this problem.

my code has been on for 3 weeks i was told this isn't a big deal fix other things first

Depends, if you have to do the smog test, then you have to fix the problem, otherwise your vehicle wont pass the smog test. Also, depends how bad and how important the other repairs are. Have you checked the gas cap? any other symptoms?

Hi Butch - know this post is a couple years old, but having the same issue and can't figure out what the problem is. What vacuum lines did you plug at the engine? Can you describe each one and location, or e-mail a picture? I have to go to emissions this week, and need to figure out a way to get this to pass, at least temporarily. Thanks!

Just FYI - exact same thing happened to me. Had a P0135 code for upstream O2 sensor, changed it out, cleared codes. Within a week, the check engine light came back on. Now have a P1457 code. Changed gas cap, inspected vacuum lines, cleared codes, and it keeps coming back. Strange that at least 3 people had the exact same sequence of events, even though it doesn't make logical sense.

Hi OBDIITech,

Hopefully you can help me with this issue, as my mechanic sorta gave up on figuring out the issue and also the leak is very small. I have a 99 Honda prelude Base model.

Code P1457 came on a few months ago. The EVAP solenoid was replaced. Also the Cannister for solenoid was glued.. The light did not come on for a month and after a month bingo! P1457 again.

My mechanic suggested to ignore the message and keep driving as the leak is too small and not much of an issue. But I hate driving with a CEL.. want to get it fixed.

He also said if the cannister is glued, the gas could leak from any other location instead of the cannister?.. Please advise if you have any suggestions? Thanks

Unfortunately, small leaks are very difficult to diagnose. You should have a repair shop use smog to find the source of the leak, in fact smog is the first thing that should be use to diagnose EVAP small leaks.