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Re: my 1998 Camry will not fuel properly. The fuel
I fight with them all the time too. Many vehicle owners experience the same issue with a variety of vehicles. The fueling systems have a return vent to control the fumes and reduce the risk of fire. Try backing the nozzle out some and keep it close to a level position.
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there is a problem with the air trying to get out as the fuel is being pumped in . This activates the shut of in the nozzle of the hose . Try holding the trigger just open so that you control the amount of fuel flowing in . Try rotating the nozzle in the filler a few degrees so that the fuel coming back will no activate the shut of system. I have found some pump systems are extremely sensitive to the air/ fuel flow back so I am selective in which pumps I pull up at for this reason. Remember you do no have to pull the trigger full bore when filling as you can control the setting with your fingers.
There are normally two hose lines from the fuel filler that run to the tank. The larger one carries the fuel from the nozzle to the tank. The smaller one is a vent hose that allows vapors to leave the top of the tank while filling. These vapors come back to the nozzle area and can be vented and/or collected by the nozzle depending upon air pollution standards in your area. If your second hose is running to the bottom of the quarter panel, it is probably the vent hose that may not have been reconnected at the top of the tank when the fuel pump was replaced. The fuel running down there is from kickback fuel at the time the pump shuts off. The real problem is that the vent line is open on top of the tank and when the tank is full, that can allow vapors and fuel to escape out of there and it could contact hot exhaust areas - a major fire or explosion hazard. Have this inspected and repaired IMMEDIATELY.
Need to inspect/clean/replace the fuel tank breather. Try this first, as this being faulty will create to much back pressure in the tank, causing the fuel nozzle to shut off quickly. Also, when filling, try holding the fuel nozzle upside down, no known reason why it works, but it sometimes does!
The engines oil pressure switch has a third wire which is connected to the fuel pump. The oil pressure gauge may work although the third wire to the pump may be at fault causing your delimma Once the engines oil pressure reached the normal operating range the computer shuts down the oil switches third wire to the pump and the relay takes over until you shut the emgine off
There is a possibility that the fuel inlet hose is collapsed causing the fuel to splash back into the nozzle. You can also try repositioning the nozzle as you fuel the car. Pull it out an inch or two or turn it to one side or the other. Usually this will help.
I have observed this condition just recently. There is a flap in the neck of the tank (not on the filler tube) that prevents fuel froim draining outof the tank in the event of a roll-over condition. The only way to rectify this is to replace the fuel tank.
I have a 2000 camry that I just fixed today. there is a vent tube and valve on the carbon canister that is located just behind the gas tank and above the cross member. this vent tube will get plugged up by ( of all things ) spiders, dirt daubers, and I even had a mouse pack the tube with dog food. Just remove the tube and the valve from the canister and clean them out. You will now be able to fill your gas tank again.
P0420 indicates you have a catalyst efficiency issue; replacement of the Air-Fuel Sensor should take care of that;
The P0441, P0446 and (I assume P0440); you said 446 twice, indicates a faulty or loose fuel cap; it is not sealing properly.
Please feel free to respond to me if you have any further questions.
A FixYa rating from you regarding my assistance would be greatly appreciated.