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AU 2 stalling 

 

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 Post subject: AU 2 stalling
Posted: Sun May 19, 2013 10:28 pm 
Oompa Loompa
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Posts: 43

Joined: 14th Jun 2011

Ride: FORD XD

Location: townsville
QLD, Australia

the au starts up idles for about 30-40 secs then stalls

i can drive the car within that but after that it will stall while driving then have to turn off then start up again

what do yous think this could be

i have no idea what it could be

the fact that it drives then stall and i can start it again and drive like nothing happen got me stumped
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 Post subject: Re: AU 2 stalling
Posted: Sun May 19, 2013 10:58 pm 
Oompa Loompa
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Age: 36

Posts: 26

Joined: 15th May 2013

Ride: AU LPG falcon

Location: Werribee
VIC, Australia

Need more info....
Petrol or gas/both?
Drives...normal, low power?
Happens when it is cold/hot? All the time?
How many k's on it?
Has the fuel pump ever been changed, assuming it is petrol?

Try swapping around the fuel pump relay and the eecv relays with other compatible ones.
Could be the crank angle sensor.
Could be the fuel pump.
Could be the coilpack, less likely though.
Could be a bad connection somewhere. Try wriggling the wiring loom and see if that does anything.

Cheers Mick
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 Post subject: Re: AU 2 stalling
Posted: Sun May 19, 2013 11:20 pm 
Oompa Loompa
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Posts: 43

Joined: 14th Jun 2011

Ride: FORD XD

Location: townsville
QLD, Australia

thanks for the reply

ok

petrol
drives normal untill it decides to stop. has power when use it
all the time
unsure lol its a rebuild
its a brand new bosch 044

i could post a video if that would help
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 Post subject: Re: AU 2 stalling
Posted: Mon May 20, 2013 12:56 am 
Oompa Loompa
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Age: 36

Posts: 26

Joined: 15th May 2013

Ride: AU LPG falcon

Location: Werribee
VIC, Australia

Ok so has this problem started since installing the new fuel pump? Why was the fuel pump replaced?
The other thing that it could be is the crank angle sensor, though these normally fail when they warm up, then need to be cooled back down before the engine will restart.

So after it stalls, if you immediately restart it starts and runs again?
Have you tried resetting the pcm by disconnecting the battery?
How long since the engine was rebuilt? Is there a loose earth or power wire somewhere?

Cheers Mick
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 Post subject: Re: AU 2 stalling
Posted: Mon May 20, 2013 2:19 am 
Oompa Loompa
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Posts: 43

Joined: 14th Jun 2011

Ride: FORD XD

Location: townsville
QLD, Australia

the au block has been put into my XD

XDs dont have a electric fuel pump

it cant be the pump because i have run a line from the battery to the pump and ran it for a while no problem

no matter what i do with the tuning (even stock) this always happens i cant make it go away i have disabled/ set start up table 0 so there should not be any increase/decrease AFR

when i am driving for the short window of time, it runs well if i give it stick it will put out or if i drive normally same thing driving driving driving then all of a sudden no throttle response (unless clutch in) engine still running but wont drive, turn engine off while rolling clutch in turn back on and works again for only short amount of time same thing
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 Post subject: Re: AU 2 stalling
Posted: Mon May 20, 2013 1:37 pm 
Oompa Loompa
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Age: 36

Posts: 26

Joined: 15th May 2013

Ride: AU LPG falcon

Location: Werribee
VIC, Australia

What pcm have you used?
Have you got the correct bcm and key to suite? Though considering it starts and runs I don't think it is a smart shield problem.
Have you checked the map sensor? should be around 4v without the engine running and about 1.6~ with it running at idle. Its almost like it happens when the controller transitions from open to closed loop.

It is really hard to tell what the problem could be considering it is an au inside an xd....

Have you scanned it for fault codes? Might be worth a try, easier than taking a stab in the dark .

Cheers Mick
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 Post subject: Re: AU 2 stalling
Posted: Mon May 20, 2013 7:02 pm 
Oompa Loompa
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Age: 36

Posts: 26

Joined: 15th May 2013

Ride: AU LPG falcon

Location: Werribee
VIC, Australia

I have an idea!
Try going through the sensors 1 at a time, disconnect, run the car, if it still stalls, re-connect.
Start with the oxy sensor, then the map sensor, tps, coolant sensor.
Is the temp sensor working/connected?
Has this problem only started since installing this package into your xd, or did it work for a while after you installed it? Do you know if the engine/conroller was working fine before you got it?

Cheers Mick
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 Post subject: Re: AU 2 stalling
Posted: Mon May 20, 2013 8:26 pm 
Oompa Loompa
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Posts: 43

Joined: 14th Jun 2011

Ride: FORD XD

Location: townsville
QLD, Australia

lol sorry mate ill give your advice a try tomorrow

woke up this morning feeling like i have been drawn and quartered could hardly get out of bed :shock:

ill let you know how i go tomorrow, i got a j3 chip and that gets rid of the smart shield dont have a BEM / diagnostics connector lol

checking individual sensors sounds good
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 Post subject: Re: AU 2 stalling
Posted: Mon May 20, 2013 11:12 pm 
Oompa Loompa
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Age: 36

Posts: 26

Joined: 15th May 2013

Ride: AU LPG falcon

Location: Werribee
VIC, Australia

Another thing worth checking too is the j3 port, make sure you cleaned it properly.

Cheers Mick
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 Post subject: Re: AU 2 stalling
Posted: Wed May 22, 2013 6:22 pm 
Oompa Loompa
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Posts: 43

Joined: 14th Jun 2011

Ride: FORD XD

Location: townsville
QLD, Australia

hey man tryed all the sensors they all seem to work

check this

http://s870.photobucket.com/user/figgie ... 2.mp4.html

if you watch this you will hear it chug as coming up to round about and i cant continue driving no throttle responce so i turn it off and turn it back on straight away and can take off no problems so i have no idea whats going on
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 Post subject: Re: AU 2 stalling
Posted: Wed May 22, 2013 7:05 pm 
Oompa Loompa
Offline

Age: 36

Posts: 26

Joined: 15th May 2013

Ride: AU LPG falcon

Location: Werribee
VIC, Australia

Hmmmm, its just weird!

If the engine will still continue to idle when this happens it can't be the crank angle sensor or the cam sensor.

Check that the 12v supply to the injectors is staying at 12v and not dropping, same with the coilpack.
Also test the sensor supply voltage make sure it stays around 5v, the tps is the easiest spot to check this.

Also check the oxygen sensor output voltage while the engine is running before and after the fault occurs, just with the engine idling and then on the road. Make sure you use the sensor ground and not battery ground when doing these tests. The BA manual has some pretty good sections that explain what voltages you should be getting.

Other than that do you have another ecu to try?

Cheers Mick
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 Post subject: Re: AU 2 stalling
Posted: Wed May 22, 2013 9:15 pm 
Oompa Loompa
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Posts: 43

Joined: 14th Jun 2011

Ride: FORD XD

Location: townsville
QLD, Australia

cheers for the help mate

mate sent you a pm
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 Post subject: Re: AU 2 stalling
Posted: Wed May 22, 2013 10:34 pm 
Oompa Loompa
Offline

Posts: 43

Joined: 14th Jun 2011

Ride: FORD XD

Location: townsville
QLD, Australia

did a count down and it dies at 45 sec every time
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 Post subject: Re: AU 2 stalling
Posted: Wed May 22, 2013 11:16 pm 
Oompa Loompa
Offline

Age: 36

Posts: 26

Joined: 15th May 2013

Ride: AU LPG falcon

Location: Werribee
VIC, Australia

Sent you a reply....
Also, Im not familiar with fuel injected falcons, what do they use to regulate rail pressure?
Is the rail pressure remaining constant before and after the fault occurs?

Cheers Mick
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 Post subject: Re: AU 2 stalling
Posted: Wed May 22, 2013 11:29 pm 
Oompa Loompa
Offline

Posts: 43

Joined: 14th Jun 2011

Ride: FORD XD

Location: townsville
QLD, Australia

typically the fuel rail on the falcon are actuator

but ive put 42lbs injectors and custom rail and Adjustable fuel reg, yes the fuel rail stays constant untill 1-2 seconds after
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