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AU ECU in EF 

 

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 Post subject: AU ECU in EF
Posted: Sat Jan 01, 2005 2:41 am 
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First up, apologies if this has already been covered in FM v2 but the search feature is another victim of the current virus attack so I can't look to find out.

OK, with that out of the way let me get to the point. I remember reading somewhere, the old FM board I think, that the EF was already wired for stuff that only got implemented on AU like sequential injection etc. I'm not particularly interested in sequential injection but rather another potential aspect of the AU upgrade: Evidently the reason distributorless coil-pack ignition was ditched on the EL was down to reliabilty problems. The thread pointed out a couple of these problems which brings me to my questions:

1) Is the EF wired up similrarly enough to AU to make an ECU swap feasible?
2) Does AU correct the problems with the coil pack ignition?
and 3) Assuming 'yes' answers to the above, is it worth the trouble?

Also, assuming it'll all work out nicely what ECU would I need to fit for it to work in my Fairmont? Will any AU ECU do ro would I have to actively seek out a Fairmont one?

 

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Posted: Sat Jan 01, 2005 12:12 pm 
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Another positive is you would gain the AUs limp home without coolant feature, though no one hopes to ever need it!!

 

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Posted: Sat Jan 01, 2005 1:15 pm 
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any thing is feasable but along with your computer you need to change tps sensor and air temp sensor and the map sensor and change around some pins in the computer plug done it and a lot of work for f**K all gain the best programing out of all the eec systems was the ef :evil:

and if you are thinking about getting a cam stick with the ef computer as it has the wide compensation range to cope with mods

see ya :evil: :evil: :evil: :evil: :evil: :evil: :evil: :evil: :twisted: evil:
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Posted: Sat Jan 01, 2005 6:31 pm 
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AU1 Smartlock (pre Smartshield) ECU is required, dont know of any 4l auto ECU catch codes yet, but if you hear of any be sure to tell us!
I'm thinking of doing this too to my ef fairmont
@Tikfud do you know what wires on the loom have to be changed?
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Posted: Sat Jan 01, 2005 11:53 pm 
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fairmont1998 wrote:
Another positive is you would gain the AUs limp home without coolant feature, though no one hopes to ever need it!!

mm aperently this dont work too good!

 

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Posted: Sun Jan 02, 2005 1:33 am 
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Disco Frank wrote:
fairmont1998 wrote:
Another positive is you would gain the AUs limp home without coolant feature, though no one hopes to ever need it!!

mm aperently this dont work too good!


Whats that? Trying to get it to work on an E series doesn't work or the whole limp home mode doesn't work too good?

 

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Posted: Sun Jan 02, 2005 2:19 pm 
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yes the whole limp home mode does not work that well from what i have been told, i want to try it on my AU but i too scared it do damage

 

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Posted: Sun Jan 02, 2005 7:48 pm 
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It's a sound idea in theory: Since the injectors are wired and fired individually instead of being arranged into banks it allows the ECU to gradually shut them down in the event of overheating in an attempt to stabilise the temp long enough for you to "limp home." In practice though, it's probably an entirely different kettle of fish.

As I said though, I'm more interested in what an AU ECU can do for my ignition than my fuel system. I don't plan on modding the engine too much, especially around the camshaft, so losing anything there isn't a particular concern of mine. What does concern me is what I'd have to do to make this work. The ability to do just a straight swap would be preferable but failing that I am prepared to replace a couple of things, especially if they just drop in without any messing around. What I don't want to do however, is replace half the EFI system just to fix the ignition.

 

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Posted: Tue Jan 04, 2005 11:10 am 
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IIRC the diagnostic connector needed some modifications as the AU is OBD-II compliant and therefore is not capable of the 'flashing LED' OBD-I diagnostic method.

Did someone say scantool :wink:

 

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 Post subject: Re: AU ECU in EF
Posted: Tue Jan 04, 2005 11:18 am 
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LSD wrote:

I'm not particularly interested in sequential injection but rather another potential aspect of the AU upgrade: Evidently the reason distributorless coil-pack ignition was ditched on the EL was down to reliabilty problems.


This is all based on the fact that you've *heard* that EF have coilpack problems? I don't know of anyone whos had coilpack problems in an EF.. I certainly haven't. Maybe don't fix what isn't broken.

The other rumour is that the EL's went back to dizzy for cost cutting.

 

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 Post subject: Re: AU ECU in EF
Posted: Tue Jan 04, 2005 10:19 pm 
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Waggin wrote:
LSD wrote:

I'm not particularly interested in sequential injection but rather another potential aspect of the AU upgrade: Evidently the reason distributorless coil-pack ignition was ditched on the EL was down to reliabilty problems.


This is all based on the fact that you've *heard* that EF have coilpack problems? I don't know of anyone whos had coilpack problems in an EF.. I certainly haven't. Maybe don't fix what isn't broken.

The other rumour is that the EL's went back to dizzy for cost cutting.


There was lots of early EF coil pack failures, otherwise I wouldn't know how easy it is to do without climbing under the vehicle like some grease monkeys love doing, they did get more reliable, I think it was more like an early design fault, also not replacing faulty leads and plugs causes coil pack failures just like Commonwhores.

The coil packs were worth around $600 dealership price back then, so with cost including potential failures you can understand Ford not putting them on EL, remember than Ford Australia was testing EL when all these problems were current.

 

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Posted: Tue Jan 04, 2005 10:29 pm 
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dont know if you could call the coil packs a problem. i have been wrecking ef fords since 1995 f**k thats 10 years :cry: i have wrecked hundreds of them i have in that time sold no more than 10 coil packs.
commodore ones however are common to pack up. we sell heaps of them
: hmm good money spinners :lol:
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Posted: Tue Jan 04, 2005 10:36 pm 
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I guess all the dodgy coil pack in the very first run of the EF falcons would've been replaced with good ones by now.. hence the low rate of failure.

 

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