Welcome Guest [Log In] [Register]
Welcome to the Dorset Japanese Old Crew. We hope you enjoy your visit.


You're currently viewing our forum as a guest. This means you are limited to certain areas of the board and there are some features you can't use. If you join our community, you'll be able to access member-only sections, and use many member-only features such as customizing your profile, sending personal messages, and voting in polls. Registration is simple, fast, and completely free.


Join our community!

If you had membership on the Original DJCC Forum then that account should still be active on this forum and you can log in below using your old username & password.

If you're already a member please log in to your account to access all of our features:

Username:   Password:
Add Reply
Feul Cut ??
Topic Started: Jan 21 2008, 08:08 PM (502 Views)
jamie
No Avatar
Sticking around
[ *  *  * ]
yesterday was driveing about and hit boost but as soon as the needle staarted to rise past 0 on the standard boost gage it felt as if feul cut was kicking in but only for a fraction of a second and it does that a few times in a row and then stops when im at full boost. feels like im either tapping the throttle or clutch and makeing the car judder. normally when i hit feul cut its in 4th and 5th gear at high revs and it cuts the feul for about a second

the car is a 1993 toyota starlet gt turbo with a 2" straight stainless exhaust from turbo back and a hks induction kit, those are the only mods i know of engine wise
Offline Profile Quote Post Goto Top
 
Andy
Unregistered

does it have the jap limiter still in place, limits you to 112mph. what gear, what revs? might help people figure it out abit more :)
Quote Post Goto Top
 
jamie
No Avatar
Sticking around
[ *  *  * ]
this happens in all gears possibly not 1st but i cant be sure as i gotta take it easy or i just spin in first and as for the revs it varies any thing from 2800 - 6000 and only while im in boost

i dont think it does still have the limit but as ive had 125 mph in 4th gear (speedos siill in kph but i had another car matching speed )but as soon as i go to 5th i hit what i though was boost cut and that was on a private air feild.
Offline Profile Quote Post Goto Top
 
Andy
Unregistered

if it happens in all gears i wouldnt of thought it would be a fuel cut though. what mods have you got and what management, has it been tuned, or has anything be changed about the cars recently ie. new mod or remap which may cause a problem.
Quote Post Goto Top
 
monka
No Avatar
Doesn't have a home to go to!
[ *  *  *  *  * ]
could still have speed cut mate, cars speedo's are out, and what stopped you going over 125mph? what car was it along side you? somin wid big wheels.

on my gps speedo i measured 121mph before it hit speed cut
Posted Image
Offline Profile Quote Post Goto Top
 
RA Jay
No Avatar
4 Have Gone But Never Forgotten.
[ *  *  *  *  * ]
It could the ECU is detecting DET and is backing off the boost.
1995 WRX - 318bhp/300ftlb - SOLD - 2005
2001 WRX Bugeye - 235bhp/230ftlb - SOLD - 2007
1996 WRX Type RA - 282bhp/285ftlb - SOLD - 2008
1997 STI Type RA - 350bhp/320ftlb - SOLD - 2009
1991 Nissan Pulsar GTiR - 286bhp/280ftlb - SOLD - 2009

Offline Profile Quote Post Goto Top
 
Andy
Unregistered

monka
Jan 21 2008, 07:39 PM
could still have speed cut mate, cars speedo's are out, and what stopped you going over 125mph? what car was it along side you? somin wid big wheels.

on my gps speedo i measured 121mph before it hit speed cut

thats highly unlikely if its happening in all gears monka, he certainly wouldnt be hitting speed cut in 2nd and 3rd gear.
Quote Post Goto Top
 
monka
No Avatar
Doesn't have a home to go to!
[ *  *  *  *  * ]
jamie where you from mate? there are starlet owners all over the place who would go out with you and probaly be able to tell you whether its speed cut or fuel.

although just re read your post and sounds like fuel, speed cut is more of a slow feeling kind of thing in gt's. not a short sharp jerk.

what mods do you have,
Posted Image
Offline Profile Quote Post Goto Top
 
Ash
Member Avatar
Doesn't have a home to go to!
[ *  *  *  *  * ]
wen my mate had his starlet the fuel cut felt like the engine was about to fall out lol usually happened in 4th gear and up but wen he fitted his fmic it started at 3rd gear, the car proper hesitated
Posted Image


RIP cilla civic :( Hello EK9 :D
Offline Profile Quote Post Goto Top
 
GlanzaV
No Avatar
Stealth Glanza
[ *  *  *  * ]
my glanza hit fuel cut some time in 4th gear. ask the starlet king he will help you out
[GK-customfield]Chris[customfield-GK]Posted Image
Offline Profile Quote Post Goto Top
 
Ady
No Avatar
Here to stay
[ *  *  *  * ]
UMM... damp?

mine used to hesitate huge style when it was raining hard, almost undriveable.
but now i have new plugs and leads there is no problem.

does it feel like hesitating/bogging down?

maybe a dodgy lead or spark plug?
Posted Image
Offline Profile Quote Post Goto Top
 
jamie
No Avatar
Sticking around
[ *  *  * ]
im from cornwall
im on uk starlet club but pcs a bit dead so just came here and the only mods i know of are the induction kit and exhaust i mention in the first post and as for the 125mph and as soon as i went to 5th it wouldnt go any faster and would keep doing the same thing i was doing just over that and then it lost all power for about a second and then returned and kept doing that at the same speed

i think u might be on to summin there ady reminds me a little of when my dizzy cap got wet in my old landy used to get a similar sort of thing hopefuly its just that
Offline Profile Quote Post Goto Top
 
vti_dan
No Avatar
Doesn't have a home to go to!
[ *  *  *  *  * ]
yer, definately sounds more like a miss-fire than fuel cut, you would know if it was fuel cut, its like hitting a wall lol
Nissan built an Impreza before Subaru, its called the GTi-R
Offline Profile Quote Post Goto Top
 
monka
No Avatar
Doesn't have a home to go to!
[ *  *  *  *  * ]
well if it keeps doing at the same speed, you've answered you own question
Posted Image
Offline Profile Quote Post Goto Top
 
jamie
No Avatar
Sticking around
[ *  *  * ]
no its doing it at all speeds it starlet to do it yester day as soon as i put my foot down it starts to happend
Offline Profile Quote Post Goto Top
 
monka
No Avatar
Doesn't have a home to go to!
[ *  *  *  *  * ]
jamie
Jan 21 2008, 07:58 PM
and as for the 125mph and as soon as i went to 5th it wouldnt go any faster and would keep doing the same thing and then returned and kept doing that at the same speed


o sorry that's what i read

try toyotagtturbo.com

its seems a bit slow tonite but you'll get what your looking for on there
Posted Image
Offline Profile Quote Post Goto Top
 
chief
No Avatar
Here to stay
[ *  *  *  * ]
actuator maybe?
The VTEC engine......Belive the hype
Offline Profile Quote Post Goto Top
 
mike b
No Avatar
Doesn't have a home to go to!
[ *  *  *  *  * ]
CHEACK FOR FAULT CODES
Offline Profile Quote Post Goto Top
 
jamie
No Avatar
Sticking around
[ *  *  * ]
thanks for the help will try all of that tomoro
Offline Profile Quote Post Goto Top
 
mike b
No Avatar
Doesn't have a home to go to!
[ *  *  *  *  * ]
at the end of the day it could be anything id start off by cheacking fault codes first then go thro and cheack ignition system then fuel sytem.
Offline Profile Quote Post Goto Top
 
Ady
No Avatar
Here to stay
[ *  *  *  * ]
sounds to me like the recent shitty weather has gotten to the engine.

pull your leads out and check if they are damp/dirty/rusty.
Posted Image
Offline Profile Quote Post Goto Top
 
MR2TURRBO
Unregistered

My induction kit on my MR2 was sucking in water draining off the roof running down the drainage channel, I made a little cover for the filter from clear plastic and it stopped, was doing exactly what your feeling. It would do it when raining or if there was water on the roof or bonnet.

I also zip tied the ignition leads away from anything metal on there path to the plugs, at 17 years old they may be a little brittle hehe.
Quote Post Goto Top
 
LegacyTurbo
No Avatar
y0
[ *  *  *  *  * ]
yeah sounds like ignition breakdown or fuel cut, you have all the mods needed to make the little starbo creep up to fuel cut with ease.
[GK-customfield]Lewis[customfield-GK]
Starlet GT 1.3 forged engine, tdo4 turbo @ 1.25bar = 252bhp = SOLD :(

EDIT: Charade GTxx 993cc three cylinder turbo, 173bhp @ 1.4bar (should hit 200bhp with a larger throttle body, removing stupid high lift cams and a bit more boost)
Offline Profile Quote Post Goto Top
 
jamie
No Avatar
Sticking around
[ *  *  * ]
paid £40 for a fault code read today and it came up with a tacho error(cant remember waht he said it was but it was summin to do with the rev counter) mechanic sed he aint got a clue whats causeing that but doubts it any thing to do with the problem im haveing

i ve looked at my leads and plugs they do seem a little dirty and under the intercooler its really sh*tty so im gunna replace them any way
Offline Profile Quote Post Goto Top
 
mike b
No Avatar
Doesn't have a home to go to!
[ *  *  *  *  * ]
You did not have to pay £40 to get a fault code check do it youself its free :o :o
Offline Profile Quote Post Goto Top
 
1 user reading this topic (1 Guest and 0 Anonymous)
Go to Next Page
« Previous Topic · Other Marques: Technical Questions & Info · Next Topic »
Add Reply

Free Domain Name Registration