i have a ek9 b16a2 greddy turbo....i took the car to get tunned and was told car ran lean after 4000RPM....any ideas wat the cause is.....if u need more info let me know....thanx

 

yea your not getting enough fuel, what is your full set up that you are running and what size injectors are you using

 

what injectors do u have, u migth need to upgrade to bigger ones.

 

310 are the ones that came with the kit....at the tune shop they said that should good enough..

 

When I went to go get my tune they told me I would be able to stick to a stock fuel pump and then half way through it he told me it wouldnt work so a 255lph pump and some 500cc+ injectors should be enough to supply fuel. remeber the small the injector the more duty cycle it has. I went with some 680cc precission's, and they work great with low duty cycle.

 

My old eg made 200 whp with the stock fuel setup.. For some reason on my last 2 ek's the fuel pump couldnt' keep up under load.. It'd jump up to 60psi and fall right back down to 40.. Make sure when you get the 255 you get the hp model.. Model number is 342.. 310's are going to be borderline on a b16t 440 or 550's would be a better bet.. Remember the larger you go the harder it will be to get a good idle.. Make sure you have a fresh fuel filter in it as well..

 

i have a walboro fuel pump....at the tune shop they told me my 310s were good enough...would it be anything else...but ill try to get some 550s....cuz i can get those addjusted with my e-mage....i think...

 

im having the same problem with my crx with b16 swap. i was told to first check fuel pressure, if it was good try running without vtec plugged in. i don't know how it would affect the motor going lean but i also had people tell me to check the cat, i guess it being clogged could cause it?? . try those things. are you throwing any codes??

 

i got a skunk test pipe...so my check engine light is on......

 

is it a solid cel ???

 

idk wat u mean by a solid cell...please explain...thanx

 

e manage or blue box?

where is the bost at 4k when it is leaning? are you having a boost creep issue?

this may be better suited in the fi forum.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek9 tubo &raquo;</TD></TR><TR><TD CLASS="quote">idk wat u mean by a solid cell...please explain...thanx </TD></TR></TABLE>

a solid check engine light...put it in limp mode and count the cel it will blink which indicates a number a solid cel is it doesn't blink which means its a one. long light with 2 blinks means 12 and so on and so on

 

The cel makes a huge difference between open or closed loop... You should try and clear all the cel before hitting your tuner... which walbro do you have? THe standard will not keep up at the higher pressures. You need the HP model liek I stated earlier.. 310's is what I ran in my boosted d and it wasn't enough fuel for it.. Most NA b series builds will run 310's.. FI cars need more as a general rule of thumb.. I'm not familliar with E manage or blue box tuning so can't comment on that..

Someone stated earlier to check fuel pressure.. I think I would do that first in your situation.. Make sure the fuel pump cna keep up under boost above 4000 rpm..

 

i checked fuel pressure its good...i got e-manage...at church's tunning they told me everything looked right....and they said it might be the wiring for the e-manage....my friend wired it so i dont even know how to check that

 

has it been tuned to run without o2 sensors??
or maybe one ur o2 sensors might be bad

 

ill check and get back to u...but from wat they told me they said the setup look good and it might be the wiring for the e-manage....