PROBLEM WITH MY GAS TANK

like just tooling around town? or during autox?

its normal to lose pressure below half a tank when autocrossing. its not normal while just driving normally.

bad sender?

Just driving around town. Forget autocrossing, I think I would fuel starve with a full tank. The car has a half a tank of gas, but it stalls out and cannot get fuel. When I fill it when it starts to starve, the most I have ever gotten in was 4.7 gallons. This is starting to piss me off. I want to take the car to Ft. Myers this weekend for an autocross, but I do not want to run out of gas going across alligator alley; a stretch of highway in the middle of the Everglades that goes 50 miles between exits, and further if you want gas.

I don't have an answer for you but on my old CRX I had this problem. It didn't start as bad as yours... it progressively got worse. Note: 10 gal. tank HF. I'd get down until pressure would drop in standard turns then fill up with about 8 gallons. Over time (100K) it got to the point where I'd have pressure drop and only be able to squeeze in 6 gallons! Hope we can figure this out for you.

I had this problem in my HF, when I replaced my fuel pump with an aftermarket unit.
I took it out, and re-installed it every which way i could, and same thing, around 1/2 tank, it would starve and choke.

I ended up swapping in an Si tank, with the fuel pump already in it.
I didn't know what else to do, and it works fine now.

-Henry

Could it be its not venting right?
Does it work if you open up the gas cap?

I replaced the pump tonight and it seems to have solved it. Just make sure that everything is in where it is supposed to be. I was able to start and drive the car with under a 1/4 of a tank. I still got fuel starve on hard right handers though.