Engine Management eCtune , Crome , AFC , FMU , Zdyne , Hondata , EMS , TE , Uberdata Anything to control your fuel, spark needs!

450's too rich

Old 04-22-2004, 01:42 AM
  #1  
0.0 BAR
Thread Starter
 
Join Date: Apr 2004
Posts: 6
Default 450's too rich

been reading the forums forever, never bothered to post questions, getting desperate.
car-sohc turbo crx, tdo4 setup, intercooler, msd, walbro 255
you get the point
car runs fine on 240's but way too lean over 6psi, goal is 9
wired the bluescreen afc and installed blue top 450's
all afc settings correct, i've read the faq and forums 100x
car idles like a harley even with H/L settings all -50
black smoke and stinks like gas
find mitsu 390 injectors instead? any advice to get the 450's to work?
also, i see them on ebay all the time, before i try rc 310's or 370's, has anyone ever wired high impedance rc injectors for a crx? do i just get rid of the injector resistor box and everything will work? any advice highly appreciated. thanks
arney is offline  
Old 04-22-2004, 06:39 AM
  #2  
3.0 BAR
 
Join Date: Mar 2003
Posts: 21,494
Default Re:450's too rich

Sounds like the AFC is hooked up wrong, or your injectors are bigger than you think, or they are ----. Triple check your wiring.
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
Dr.Boost is offline  
Old 04-22-2004, 09:57 AM
  #3  
3.0 BAR
 
Join Date: Feb 2003
Posts: 9,089
Default Re:450's too rich

list all your settings, fuel correct and the misc setup like pressure / 06 06 etc..

what model is your crx si ?
88crxSi is offline  
Old 04-22-2004, 12:40 PM
  #4  
0.0 BAR
Thread Starter
 
Join Date: Apr 2004
Posts: 6
Default Re:450's too rich

ok, the afc is wired correctly according to the apexi american d16a6 chart that i downloaded from the site. i also looked up the j spec chart and was told that was for b16 applications only by a couple guys who have already wired the afc's into their crx's with b16's. yes, the brown ground is closer to the ecu and the black is further down the wire by 1cm like apexi stated.
the injectors are def 450's because they have blue tops and 450 is labeled directly on them. the afc is set 6in 6out, 4cyl arrow facing northeast, throttle % 71/72. the only factors i can think of that would change anything is the 88-89 integra ecu i am using and the 255 walbro possibly giving too much pressure. i even cut the spring in my adj. fpr to get the static pressure down to 40psi. should i try the injectors with the afc set at -50 across the entire rpm band on high and low throttle, or should i just look for dsm 390's? at this point i am even considering dishing out the money for rc 310's or 370's. my only concern is how to bypass my injector resistor box because the rc's are all high impedance. any advice on rewire from low to hi impedance? thanks for taking the time to read the post-scott
arney is offline  
Old 04-23-2004, 05:55 AM
  #5  
0.0 BAR
 
Join Date: Mar 2004
Posts: 0
Default Re:450's too rich

I dont think by going with smaller injectors will you have any more luck, unless yours are bad and are leaking by. The 450's seem optimal and you can lean the crap out of them with the hack. Something else is wrong.
SpankedYA! is offline  
Old 04-23-2004, 04:08 PM
  #6  
0.0 BAR
Thread Starter
 
Join Date: Apr 2004
Posts: 6
Default Re:450's too rich

ok, so if 450's have worked for everyone else, they should work for me. going by this philosophy, the only thing i can think of that may be wrong is that when i first installed the injectors, i set the afc settings to -50% across the board on high and lo throttle. according to the mathematical equation and explanation on the faq, i should only have to lean the injectors out to -40 at idle and slope the fuel curve upward from that point. could setting the "eq" or fuel curve flat and as lean as -50 be effecting anything? i know that the afc is working properly because i now have the stock 240's in with the afc set to 0% across the board and it runs perfectly, just can't boost cuz the obvious would occur, and if i lean out the settings on the afc, i can get the car to stall out because the afc cuts the fuel. i could have beat 450's and have already considered getting them flow tested but do not want to waste money on injectors that will always run too rich. for some background, my buddy's turbo integra would not even run with the 450's he tried to use, but i figured that was because he had the old school apexi afc with the 5 rev settings and + - 30% for the fuel.
arney is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
turboteg
Engine Management
13
04-26-2004 03:49 PM
Sniperpain
Forced Induction
10
09-20-2003 10:11 PM
ONIN
Forced Induction
3
07-23-2003 05:49 PM
thecivicking
General Discussion
4
06-02-2003 02:54 PM
Xgenturbo
General Discussion
1
01-02-2003 07:56 AM


Thread Tools
Search this Thread
Quick Reply: 450's too rich


Contact Us - Sitemap - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.