Just got a b20/b16 swapped crx and it has a issue.

When it hits half a tank of gas it spits and sputters and won't run, but on a full tank its fine.

Tanks been dropped pumps working correctly different computers changed around. It also has a idle issue and Ive replaced the iac and tps with no luck.

Anyone got a clue here what the problem is?

 

is the pump at the correct depth? wrong sock or maybe not installed right?
a lot of times people put in new pumps that are not the correct one for the car, thus rigging it t fit and then it doesn't reach down far enough into the tank. I've seen this many times! lol

 

Stock pump as far as I know man. Is the issue constant with that?

 

???

 

Well, only thing i can add is if you already drained the fuel tank and made sure theres no water and its cleaned out, then maybe the fuel pump is having issues. The fuel pump needs at the lowest a quarter tank of gas to lubricate itself from overheating since it is an electric pump. Maybe its giving some warning signs.

 

You could try running some lucas fuel cleaner to clean out the fuel system. It cleans out the injectors and what not and you can run that with your system a few gas tanks

 

you've got the wrong pump or the wrong strainer bag thing, when installed it should LITERALLY lay on the bottom of the tank.

 

Hmmm alright let me drop it later tonight and Ill see whats going on there