When the car is around a half a tank it misses really bad and has horrible performance. feels like a timimg issue? but when I fill it up the problem Almost goes away. I have changed the fuel filter and no luck??
any help would be great
Thanks guys

 

try changing the fuel pump it could be gettn weak and there is another filter on the bottom of the pump it could be lil stopped up a lil once your gas get half tank or less the pump is no longer submurged in gas so it gets hot and could be about to leave you stranded you can get a fuel pump from ebay brand new for $99 its easy to do if you didnt know just take out your lower back seat cushion and ull see where the wires run through a metal plate take it off and ull c

good luck

 

thanks, I figured that could be the case. The 92 civic did recieve a recall on the fuel pump.

 

I'd go ahead and grab a walbro255 if you're gonna be replacing you mine as well upgrade at the same time.

 

Why the fuck would you put a 255 in a stock 1.5 liter?

 

ditto........good way to get poor fuel mileage and black smoke

 

If he keeps his honda stock he's 1 in 120,304.4. Just about every honda is going to be modded and it's always better to upgrade when you're replacing a part. If He's not changing injectors or the fuel pressure there won't be any smoke or overcomsumption of fuel. The pump is just more efficient. The presure is not being increaced nor is the injector pulse width.

 

No

No


Wat

Incorrect. You are increasing pressure at the fuel rail. More fuel flow at the same pulse.

 

fuel pressure will increase due to the stronger flow of the fuel pump.......i have already done what you are speaking of. walbro 255 in a stock civic. the results where less than ideal.

 

You'll only increase fuel pressure if the stock fuel regulator can't flow enough to regulate the higher flow of a beefier pump, and you're not consuming enough on the other side of the regulator to keep the pressure differential low..