Honda Car Forum

The problem is after I get below a 1/2 tank of gas it starts to stall when I slow down and get the RPMs below 1000. Only when the gas gets low. I can coast up to a stop sign in Neutral and it will still happen. The down shifting seems normal and smooth. After it stalls all I need to do is wait about 15 seconds and it will fire right back up and idle clean. Otherwise the car runs smooth and never has problems at highway speeds.Things I have tried…replaced Air Filter,Fuel Filter,Plugs,Wires,Rotor,1 can of Isopropyl,Adjusted Idle,PVC valve,Transmission treatment (improved upshifting smoothness),Motor oil treatment,Checked vacuum hose to the fuel pressure regulator and its dry inside and out,Disconnected the vacuum hose to the EGR valve and it still stalled,,There is always pressure in the gas tank when the gas cap is removed.Again many thanks if he can give me some advice.Thanks for the quick replys - Actually I have tried both suggestions, I have run 2 bottles of injector clearner and I have also cleaned the throttle body. Again this only happens when the gas tank is low. thanksThanks for the back pressure suggestion, I have tried that as well and no luck.Thanks again for the suggestions. I checked the filler tube and no rust, this is pratically a rust free car which is pretty amazing in MN. The car never stalls going up or down steep hills. I purchased a new fuel pressure regulator and plan to install - I will let everyone knows if that help.Well I replaced the fuel regulator and no help. I pulled the fuel pump and plan to replace. The filter seemed dirty and most noticably it was bent upwards... maybe that is normal but it sure didn't leave but maybe a 1/4 to 1/2 inch of the filter in the gas when the tank was at 1/8

Have you run a total fuel system cleaner through it? Might be worth a go. Just a fuel additive with an octane boost in it.

TRYING CLEANING YOUR THROTTLE BODY..THEY ACCUMULATE OIL IN THERE AND THEN STICK AT LOW RPM..EFFECTIVELY CHOKING YOUR CAR. HONDA'S ARE NOTORIOUS FOR THISTHE OTHER CAUSE ALSO VERY COMMON IS THE IGNITION MODULE ON THE DISTRIBUTOR ITSELF. THEY ARE ABOUT $100..BUT TRY CLEANING THE THROTTLE BODY FIRST...

it sounds like you have back pressure which gets worse with lesser amount of gas in the tank. try leaving the gas cap slightly loose to release that back pressure and i bet that willnot stall out......

Get a clear clean bottle and take a fuel sample to check for rust and water.the filler tubes can get rusty in and out causing water to come in via the wheel well,I am In MI and this is a common problem on many cars.If you have water in your fuel system tis could very well be the problem.the solution would be replacing the filler tube.I guess maybe the overflow tube could rust closed to causing excess back pressure,but not to sure on that one.its ez to check s no harm if I am wrong

Are you sure youre not just a little less than 1/2 tank when that happens? If its a fuel injection car, you have to make sure the gas level in the tank is above the float or it will not run properly...sometimes even buck or stall. Youll notice also that going up or down even small grades will affect the way the car runs as well. If you notice the car runs better with a full tank, then have someone look at the float for you. Or drain the fuel tank completely (sometimes dirt or sediment on the bottom of the tank, and water can cause that to happen). Good luck

have you checked fuel pressure?, especially when it stalls out?

This happended to one of our fleet cars, there was a piece of plastic bag iside the tank which blocked the outlet at low fuel levels! You might need to ceheck inside the tank

Have you tried not driving a 1991 Honda Prelude??Get a better car. Problem solved.