Car was very low on gas and would not start Used gas can and put 3 gallon in tank, still would not start. Next morning, tried to start several times and engine finally started. Let car run for 15 minutes and it ran fine. Turned off engine and tried to start again, but engine failed to start. I think it's the fuel filter, but I don't know for sure?

Reset the computer & check the fuel PSI. You may want to replace the gas filter. when u run dry, the filter picks up all the dirt at the bottom of the tank. Make sure your gas PSI is good before u get into electronics. start w the basics. That would set that code too trying to start dry.Good luck

If high miles, it may be a fuel pump. Fuel pumps usually go when gasoline is low and pump gets too warm. This may mimic running out of gas when there is a gallon or two of gas still left to draw but needle reads empty. Have someone put their ear to the gas tank while you turn on the ignition switch. the pump should run for 2-10 seconds with key on and not cranking.

If you don't hear the pump run, then investigate further for a failed pump.

I have seen several questions from people tonite whose car started running bad after getting gas. Try putting some water remover and or octane booster in the tank. I can't guarantee this will work, but it is the cheapest and easiest solution to start with. Next would be the fuel filter, and a tune up after that. Hope this helps.

driving with low fuel is never a good idea. It can allow all kinds of contamination in the tank be picked up and sent to the engine clogging the pump, and injectors.
I'd start with a good fuel system cleaner like Tecron. add the contants of the bottle to the tank then put at least 12 gallons of gas in the tank. You may need to do it a second time especially if you notice improvement but it's not yet up to par.

funny that you mention ' Dark Matter ' -- there is a possibility that you might have water contamination in the tank (?), you can try and get some gas additives that remove water from the fuel. also, there is the possibility that fuel pick up line has been damaged and is not getting fuel from as low in the tank as it use to.

c...

Do you think you have enough gas in tank, put 3-4 gallons in then try

In my opinion it is caused by having too little gas in the tank. You are not suppose to run it it with that little gas anyways because it is bad for your car since all the contaminants can be sucked into the injectors and cause all kinds of problem.

If the fuel gauge drops off when you are driving then its a sending unit problem that means you have to drop the tank and replace the float and sending unit. This is a common problem for alot of cars because of cheap gas. If you have to drop the tank check the fuel pump canster for dirt because of cheap gas. Replace the fuel pump strainer and fuel pump filter. If the car or truck has about 100,000 miles you might want to change the fuel pump at that time also just to cover your back. If you take it to a shop they will charge you at least $900 to start. But if you do it yourself it will cost you about $200 dollars maybe alittle more.

you probably ran it to low and sucked some trash out of the tank. try changing the fuel filter or put some gas in it because the little fuel you had in it probably evaporated over night.

Good chance that even on 4 gallons it may not start I would try for more, prime the fuel pump several times by turning the key on and leaving it on for around 5 seconds then shutting it off and repeating, obviously not trying to start. I've had cases where even small FWD cars won't start even on 4 gallons on a 12 gallon tank. The newer fuel pumps are a closed system that only allow a small portion of fuel into the pump housing to keep contamination down. Let me know if after adding a few more gallons it won't start we will trouble shoot from there. Thank you for using fixya.com