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-   -   getting fuel cut on turbo crx. why? help? (https://www.homemadeturbo.com/engine-management-10/getting-fuel-cut-turbo-crx-why-help-2701/)

t.locrx 03-20-2003 10:59 PM

Re:getting fuel cut on turbo crx. why? help?
 
thanks for the info. i guess ill put that on and see what happens

t.locrx 03-22-2003 09:23 PM

Re:getting fuel cut on turbo crx. why? help?
 
that ---- didnt work. change the fuel pump to the 255 walboro and the ---- is still doing the same ----. does anyone know what the hell is going on. super afc seems to be adjusted right. i need help do i need a zdyne or what????

Tom-Guy 03-23-2003 03:10 AM

Re:getting fuel cut on turbo crx. why? help?
 
The AFC reads 5200 rpms when the cut happens, or your tach?

t.locrx 03-24-2003 08:27 PM

Re:getting fuel cut on turbo crx. why? help?
 
both the tach and safc reads it. its really inconsistant. its anywhere from 4800rpm to 5200rpms. it doesnt feel like the average fuel cut. i tried retarding my timing 5 degrees still didnt work. im lost and need help. even tried using someone elses computer

t.locrx 03-25-2003 10:23 AM

Re:getting fuel cut on turbo crx. why? help?
 
i cant be the only one that this has happen to. am i?????

88crxSi 03-25-2003 01:56 PM

Re:getting fuel cut on turbo crx. why? help?
 
throwing any codes???

omahaturbocivic 03-25-2003 02:25 PM

Re:getting fuel cut on turbo crx. why? help?
 
running too rich in upper rpms can make it stutter like a fuel cut.

RENR 03-25-2003 02:27 PM

Re:getting fuel cut on turbo crx. why? help?
 
what are your afc settings exactly??

turboEGG 03-25-2003 09:37 PM

Re:getting fuel cut on turbo crx. why? help?
 
ok my man heres the answer if you had my problem. the reason i think i know is becaus ewhat you describe sounds dead on what i experienced. What is happening is that your afc is not hooked up right and is only operating on low vtec tuned fuel maps. the high vtec is not tuned to negative 40 or so like the low cam fuel maps.

Your afc is set incompletely to fix this you need to:

1.enter the narrow throttle settings for fuel (not values but the settings menu: narrow throttle)

2. set the values for low cam
3. hit the > (right arrow) key to enter high cam values
4. do the same for wide throttle.

mine did the same thing and it was merely dumping fuel because of programmer error.

if it isnt this check your vtm wire , your vtec wires, and solder all connections if not already soldered.

My friend didnt solder and his car would not activate vtec (no signal duh) because loos connections.

hopefully that solves your problem, it has saved a couple of my friends hours of guessing.

t.locrx 03-28-2003 06:30 PM

Re:getting fuel cut on turbo crx. why? help?
 
ive got the safc not the vafc. right now ive got the settings as 1k rpm -40
2k rpm -40
3k rpm -39
4k rpm -38
5k rpm -36
6k rpm -36
7k rpm -35 and thats on low and high
throttle. throttle position is 20% and 40%


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