What does it mean if the gas tank light comes on and stay on in the 2002 Hyundia accent

You can clear the code and see if it comes back first.
Code 441 is for incorrect purge flow which means the computer vented the gas tank to the vapor canister and the flow went the wrong direction or there was a vac when there should not have been.
If the code returns a mechanic will need to check the gas tank vent.

http://www.2carpros.com/questions/hyundai-accent-2002-hyundai-accent-crankshaft-sensor-location

the check engine light comes on to alert you that there is a problem with an engine sensor, a system that the computer monitors, or a part/system that the computer controls. There are literally hundreds of possibilities as to what could be wrong.

The best thing to do is have the computer scanned. There are a couple of options to do this.

1. A basic code reader can be purchased for about $50. This will allow you to pull OBDII specific codes.

2. Most parts store will pull trouble codes, sometimes for free.

3. You can bring your vehicle into a shop to have them run a diagnosis. There is usually a charge for this service.

Once you know what the code or codes are post them and I'll be happy to help you further.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

you have a restrictor in the fuel filler neck to stop fuel leaking out if the car overturns,unfortunately it also means you have to hold the fuel gun 1/2 way to stop it shutting off.also to fill right up, you have to rock the car a little when nearly full.autofill guns are only in USA/Canada. you cannot take out thr restrictor......

The reason the gas station pump shuts off is when the fuel reaches the tip of the gas nozzle, so when you are filling your car and the gas nozzle (gas stations pipe) keeps shutting off it means that the pipe that runs to the gas tank is not open completely, what happens is when you pump the gas in the car the supply pipe from the gas tank opening to the tank fills up quickly and this causes the gas station pipe nozzle to shut off, have some body take down the gas tank and have a look at the gas tank opening and also gas supply pipe that runs from the gas filler opening ( on the car body) to the gas tank. Have a look at it and please don't forget to rate the answer if it was helpful, thanks!

could be alternator

First GUESS.. replace the charcoal canister after you have cleaned out the hoses between it and the canister. Then blow air between the purge control solenoid valve and the fuel tank.

more then likely its a wheel speed sensor setting off your abs light

are you doing this on the ground or on a lift

you will need to have the codes pulled it could be many other sensors or problems being detected