we've decided its running rich. besides changing plugs and the minor electrical components there is no way to "tune-up" an FI, non-carbuerated car, correct? Is it possible that my computer is somehow goofed, or is there some way to adjust it?

 

On the cheap, you could just get a fuel pressure regulator and dial things down a bit.

There's a couple of things that could be wrong with your engine, but there's no easy way to diagnose that.

 

Adjustable fuel pressue regulator?

 

is this something i can do without outside mechanical assistance? If you go too low you get cough back and dieselign right? i mean, you can serisouly **** yourself if you bung that up?

 

Tried resetting your ECU?

 

With a good FPR and gauge (important), you should be able to tone down your mix yourself.

It is possible to blow your engine into next month, but you'd have to be really retarded.

 

A VAFC or SAFC would work too...

 

i removed the battery this weekend to install a strut bar, so yeah.

 

That's not actually resetting your ECU. Wait till CivicRacer SI gets to the thread. He'll give you the step by step. It's something like...starting your engine....turning it off.....turning the key all the way then starting it...:dunno:

BTW ~ Yours as bad as mine with the new exhaust? :chuckles:

 

i KNOW an a/f gauge is not so accurate, BUT it would at least give you an idea if you were WAY out of spec...

maybe bad 02 sensor..? is that a posibility.. the sensor might be bad and reading you are leaner than you actualy are.. so it may be dumping in extra fuel??? i would get a little bit more of a DEFINATE answer before changing the fuel pressure.. i mean look at it like this.. you have not done anything to make the car provide more fuel.. so something is definately wrong, and pulling fuel may help.. but it may also hurt (pulling too much)

fuel pressure gauges are cheap... does it smell at idle?? if so, check the fuel pressure at idle, while the smell is present..