| Author | Topic |
|---|
Location:
Canberra
Registered:
April 2003
|
|
4agze starts then stalls
|
Sun, 08 May 2005 09:26
|
 |
I am haveing some major problems with getting my 4agze to run continuisly. It is a Bigport AFM version out of the AE92 corolla with DLI, so its has a Crank Angle sensor and Coil Packs, in place of the dizzy like the AW11 version.
I am about 99% sure I have all the wiring correct except for one section, and it is a major section.
At first the car would turn over but would not fire, it has no spark. as far as i can tell the coil packs work fine, the igniter is fine, but I am not sure on how the Crank angle sensor works. I belive this could be where my problem is coming from. How do you tell if you have one timed at TDC with the engine? and what kind of voltages should I be looking for down the lines, is one a power, one a ground, the other 2 pickups or what? there are 4 wires, the ecu pinout codes read G-, G1, G2, NE.
Since I didn't have spark I tried an AW11 gze ecu which uses a Distributor and single coil system, put a GE dizzy on it and gave that a go. the car then started, but 1 sec later stalled everytime. the AFM seems fine, as does the fuel. so does anybody have any suggestions on what could be causing this. the thing I can see it may be tha same cause as the first try, cause a GE dizzy only has 2 wires to the ecu, while a GZE AW11 dizzy has the same 4 as the crank angle sensor. because the ecu is not reciveing these pickoffs could that be why the car stalls? or any other things I should try and look for? Or does anybody know how I could fool the ecu about the extra pickup that the GE dizzy does not have?
Any help would be appriciated
[Updated on: Sun, 08 May 2005 09:37]
|
|
|
Location:
brisbane
Registered:
December 2004
|
|
Re: 4agze starts then stalls
|
Sun, 08 May 2005 10:31
|
|
|
on a dizzy, ones sync ones signal ones 12volt ones earth
|
|
|
Location:
brisbane
Registered:
December 2004
|
|
|
Location:
Canberra
Registered:
April 2003
|
|
Re: 4agze starts then stalls
|
Sun, 08 May 2005 11:09
|
|
no that wouldn't be my problem, the fuel ain't that old and they are new plugs.
the thing is the GE dizzy only has the 2 wires coming out of it, what would these 2 most likely be, power and ground?
|
|
|
Location:
brisbane
Registered:
December 2004
|
|
Re: 4agze starts then stalls
|
Mon, 09 May 2005 04:59
|
|
|
my plugs were like 3 months old.. and i thoguth that too .. but it was just a suggestion.. if all else fails try that
|
|
|
Location:
Melbourne
Registered:
May 2002
|
|
Re: 4agze starts then stalls
|
Mon, 09 May 2005 06:29
|
|
Sure your fuel pump is staying on after it starts. You you crank, it sends signal to the fuel pump relay to pump for starting. But when you let go of the key when it starts, it will drop that signal. It's supposed to be picked up by some contacts in the AFM which turn the pump relay on. If your wiring isn't right, this won't happen, making for similar symptoms that you have.
A way around it is to put the fuel pump in test mode, it's in the BGB. Something about contacts FP and E, i think. But don't run this permanently as the AFM cuts fuel when the engine stalls, so in an accident it'll keep pumping.
dodgydan
|
|
|
Location:
sydney
Registered:
March 2003
|
|
Re: 4agze starts then stalls
|
Mon, 09 May 2005 07:09
|
|
that dizzy wiring descripotion is wrong
it has one common earth
and 3 signals
2 are top dead centre marks
the other is a 24 tooth crank position sensor
if the cas was fukt it would not start at all
|
|
|
Location:
Canberra
Registered:
April 2003
|
|
|
Location:
On your mum!
Registered:
May 2002
|
|
Re: 4agze starts then stalls
|
Mon, 09 May 2005 07:47
|
|
if there is NO spark - it will not and cannot start. Did you earth the spark plug while testing it?
Did you search on this? try "car starts"
I have had this in a couple of instances (where the car starts and stalls) it turned out that the injectors weren't pulsing
and needed a little rap with a screwdriver (on the steel body of the injectors).
Is this a Vane type AFM?
|
|
|
Location:
sydney
Registered:
March 2003
|
|
Re: 4agze starts then stalls
|
Mon, 09 May 2005 08:03
|
|
is the igniter earthed
do the fuel injectors click
|
|
|
Location:
Canberra
Registered:
April 2003
|
|
Re: 4agze starts then stalls
|
Mon, 09 May 2005 08:43
|
|
Jason, Yeah I did earth the plug while testing it and nothing, usually you can see a spark jump, but not in this instance.
Jason what would cause them not to pulse could it be, bad timing.
Sideshow, no I don't hear the injectors clicking. I did actually send you a PM about this, there is no actual earth wire from the igniter, does it just earth through the case or what?
|
|
|
Location:
sydney
Registered:
March 2003
|
|
Re: 4agze starts then stalls
|
Mon, 09 May 2005 08:50
|
|
ok
theres been afew emails i havnt gotten
not sure y but anyway
igniter earths thru case
u need to see if u have the correct signals from the dizzy
u need ot have the correct crank sensor for the correct ecu
and the correct igniter
im not sure if yrs is a bitsa or a complete set
but if the cas is ok u should get spark
then if the car doesnt start within afew revolutions the ecu turns off the injectors incase it floods
so u have to work on spark first
get the right cas if u have wrong one
make sure igniter body is earthed
was the loom in one piece or was it fukt and u had to fix it
make sur ethe igniter is powered up and the coils powered up
|
|
|
Location:
brisbane
Registered:
December 2004
|
|
Re: 4agze starts then stalls
|
Mon, 09 May 2005 09:21
|
|
try another plug in the lead earthd to the engine b4 u go towing 
|
|
|
Location:
Canberra
Registered:
April 2003
|
|
Re: 4agze starts then stalls
|
Mon, 09 May 2005 12:57
|
|
ok it is the correct crank angle sensor for the ecu, the igniter not to sure of, I think it is one of a map sensored gze.
and yeah the loom was fucked and I had to fix it, to do this though I went a little differant, I really didn't want to hack my AW11 loom, so I re pinned everything at the ecu that was existing, and made a new loom out of the remains to run everything else that wasn't there, and tapped that into the AW11 loom where it needed to be.
well the igniter and coils has power to them deffinatly, don't know how to test if they are powered up.
Thanks
|
|
|
Location:
Canberra
Registered:
April 2003
|
|
Re: 4agze starts then stalls
|
Sat, 14 May 2005 07:35
|
|
|
Hey I am wondering something though, does anybody know if the coil packs need to have a ground to them? cause there is a power wire, and a trigger wire, or does the trigger wire get pulled to ground when its suppose to spark?
|
|
|
Location:
Glong
Registered:
May 2005
|
|
Re: 4agze starts then stalls
|
Sat, 14 May 2005 13:10
|
|
|
I've seen this problem before, if the car starts then stalls straight away. Check the wiring to the ballast resistor and the resistor itself for continuity, (white rectangle thing usually near the coil with two wires coming off it)
|
|
|
Location:
sydney
Registered:
March 2003
|
|
Re: 4agze starts then stalls
|
Sun, 15 May 2005 00:43
|
|
ballast resistors went out in the 80s
|
|
|
Location:
Sydney
Registered:
September 2004
|
|
Re: 4agze starts then stalls
|
Mon, 16 May 2005 09:16
|
|
Not sure if it applies, but when I worked on my car once (3SGTE) and forgot to connect up one of the PCV pipes, car would start fine then like clockwork would die like you just turned the key off in about 1-2 seconds. Soon as i connected it up it worked fine.
checked intake for leaks?? or im way off the track,
|
|
|
