i got a f22b Dohc in my 92 accord and im gonna be upgrading my fuel system (18 mpg right now)
im thinking smaller injectors
aem fuel rail, filter an regulator, als running new fuel lines through out the system an swapping out the narrowband 02 sensor and upgrading to a wideband 02 sensors
anyone with ideas that will help is greatly appreciated

 

wut

 

you have never heard of a F22B Dohc?

 

Are you talking about the JDM F22B DOHC? Because unless it has a head swap, I can't say I've ever heard of a common F22Bx having a DOHC head. One of these?
http://www.diamondjapanese.net/images/F22B2D2D2D.jpg

Anyways, why would you upgrade to a smaller injector? (Unless this thing is upgraded heavily with new injectors) the stock ones should be fine and I would search otherwise to find your crappy gas mileage culprit. Maybe an issue with the EGR being dirty, clogged fuel filter, old plugs/wires/cap/rotor, running the incorrect fuel type, etc. Or heck maybe even your stock injectors need a good cleaning.

AEM rails and regs are fine, people have been using them all the time with good results. You should also invest in a new fuel pump if you are deciding to go all out with the fuel system. Anything fuel related is pricey, something that should be taken into account.

 

you dont know how many times i have looked egr is opening like it should
fuel filter has been replaced spark plugs air filter, cap and rotor where all done when i dropped the motor in
i didnt upgrade the system at the time because i didnt have enough to do it so worked with what i had an basically did a complete tune up
the everything except for the fuel lines the pump filter an fuel rail was replaced an i cleaned up an made sure everything was thourghly cleaned

 

Well you obviously have an issue somewhere, what size are your current injectors? Your fuel lines should be perfectly fine as they sit.

 

300cc injectors and i was actually looking at the lines where they met and there are signs of cracking

 

the f22b is basically the same as the h23a

 

Has your car been tuned to compensate for the larger injectors?

 

yes it has i bought a stand alone engine management system from aem to tune it properly

 

Your stock ones should be more than enough for just I/H/E. Unless you have some mild cams then you may consider getting some bigger injectors. I have a set of DSM 450cc injectors in my setup.

 

I'm trying to improve my gas mileage not go faster

 

then why did you buy a stand alone engine management system and why do you want to upgrade the fuel system? Honda builds all their cars for fuel economy, if you just want to save gas, put it back to stock

 

It gets 20 miles stock
The way I got the system now it goes 28 I'm trying to do better than that
As for your question about why I bought the ems an upgraded everything
There Is not a single manufacturer that builds a car to my liking if they did I wouldn't have a need to **** with it and make it better

 

If your Accord was getting 20mpg stock there is something definitely wrong with it.

 

put it back to stock and find out the issue causing it to use so much gas, Honda spends millions of dollars trying to get every last MPG out of their cars, you are not going to out engineer them on that, something is wrong causing it to get 20 mpg

 

i got a bone stock 95 accord ex 2.2 and I'm getting 38 mpg so there is some thing wrong with your car go stock