Its dumping fuel back into the canister, check valve in the fuel pump assembly likely failed, get a pump off amazon and install it. This will give you the ability of free returns for 30 days just in case that doesnt fix it but it likely will.

Your stalling because the system is likely filling up with fuel and flooding the engine out. The pump assembly also has the vent that goes to the canister in it and isnt supposed to allow fuel up that line into the canister.

The only other possibility I can think of is heavy vacuum on the system, which easy way to check is valve with small vacuum line on top of the throttle body, it goes to the line that then runs along with the fuel line behind the engine and back to the tank. Pull that hose off. Likely will then run better but if that valve has failed you'll hear it sucking and rpm will be high due to vacuum leak. The hose probably will have fuel come out of it so have a rag ready to absorb it.

I hope this is easy to follow, post up if you have questions, I can take pics from mine after work today if needed to help show the valve.

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Thanks for the response. I'll try your advice and will let you know my findings.

 

Replaced fuel pump today and no change. Still has trouble starting after filling with gas.

 

Does this vehicle have "drive-by-wire" or a physical accelerator cable? If it's the drive-by-wire system, I wonder if there's a problem either in the accelerator pedal's position sensor, or the electrical motor inside the throttle body.

Also, did you drain the tank? Maybe there's water or something in it that's being stirred when you fill it.

 

I've had this issue sense I bought this car back in October 2019. I have sense driven it 10,000 miles and several fill ups. I would hope that if anything was in it would be gone. The issue only happens when I fill it up with gas. It starts up just fine every morning afterwards. Also it has a cable that goes to the throttle body as well as a cable for the cruise control. This on going issue has been a pain at the pump and I've thrown a lot of money at it already.

 

Explain to us, in detail, what you do when you fill the tank.

 

I un-screw the cap. put in some 87. Doesnt matter if I fill it to half a tank or until the pump stops itself. I screw the cap back on until i hear it click and when I start the car it revs up to 1,000 and then dies. Then I have to press the pedal about half way and feather it to get it to start and then hold the rpms over 1,000 or it will die. After about 15 seconds I can slowly ease off the pedal and the car will rest at idle and I can put it in gear and drive away. My 99 civic I always just fill it until the pump stops and the car starts just fine.

 

Okay, so no waiting until the pump stops itself, then squeezing the pump handle a couple of times to get a bit more gasoline in the tank?

 

No because I heard that you can push gas into the charcoal canister that way.

 

Ok I was thinking that your would have the vent built into the pump assembly. I was wrong there.

Did you check the vacuum hose that connects to the throttle body for the evap?

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The problem I had in the winter with my CR-V 2004 is if I let the gas go below half a tank and filled up it be hard to start if the gas was just over half Mark no problem starting.

 

Doubt this will help but this is how evap emission system works, ....
When one fills the gas tank, gasoline goes into the gas tank and air comes out.
The air if full of dirty polluting hydrocarbons
and can not be vented into the atmosphere due to emission regulations
So that air goes through the charcoal (filter) filled canister.
The hydrocarbons are deposited onto the charcoal.
The air goes out past the vent valve (normally open) clean.
Later when the vehicle is on the highway and demanding larger amounts of gas,
The purge valve (normally closed) opens
and engine vacuum pulls air in from the charcoal canister
The vent valve allows air into the charcoal canister and pulls the hydrocarbon out.
That air is then sent to the engine where it burns the hydrocarbons.

Common causes for no start after fill up, ...
1. If the vent valve (located near the charcoal canister) is stuck closed
(there is no air in the gas tank to expand and let gasoline go)
then no air can get into the gas tank and the engine will starve for fuel, stalls
2. If the purge valve (located near the in-take plenum) is stuck open
(gas vapors gets pushed into the in-take plenum flooding the engine)
then too much fuel gets into the engine and the engine floods, stalls

P1457 is a Honda specific code for Evap small leak detected
Smoke test is usually run to find where the leak is.

Note: Air is compressible/expandable. Fluids are not.

 

Mine has the same issue/code: "Evap small leak detected" but what if the smoke test doesn't find a leak?

 

Are you aware of tsb 99 075
It relates to p1456 p1457 and your Vs generation is included in that bulletin.

 

the purge valve on the throttle body might be stuck open flooding the engine when filling up

 

After letting my car sit for a year to save up money to get the head gasket fixed. The issue stopped happening.

 

Funny, my 04' used to do this. Forgot all about it until seeing this thread, hasn't done it in a couple of years.

 

So did anyone figure out the cause of p1457. Or a confirmed fix

 

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