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Australian Falcons Discuss the australian born and bred models here. Includes the 80's 90's and present day Falcons offered by Ford Oz.

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Old 08-17-2004, 03:12   #1 (permalink)
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Can anyone help?

Hello all. As some of you know, I've been in the process of doing some repairs to my EA after an unfortunate accident a couple of weeks ago.
Anyway, car is straight now, I had to replace the water pump and p/s pump, and I figured I may as well do the mpfi conversion at the same time.
Got everything installed and hooked up last week, but there is a problem.
Car would crank, but wouldn't fire. Had one of the guys at work fiddle around with it, we figured out the timing was screwed (I replaced the dizzy) so we kinda fixed that up, now car starts.
BUT, it doesn't run too well at all. Idle is lumpy as all get up, occasionally when I open the throttle she just stalls, sometimes she won't even start.
But, if I start it with the throttle open, she'll quite happily sit at 1500-2000 rpm with no trouble.
Now, I suspect my timing is still dodgy, but I don't have the tools or know-how to fix it, and unfortunately nobody at work is able to help me.
So, my car is stranded at work till I can get it fixed. The point of this long winded post, is anybody free on Saturday to give me a hand trying to fix it?
I would appreciate any assistance at all, or even just the use of a timing light to try to figure it out. Reply to this thread or PM me if you are able to help.

Thanks
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Old 08-17-2004, 05:44   #2 (permalink)
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Re: Can anyone help?

There's a wire on the manifold loom that needs to be connected to a wire on the old ISC plug. Karl put up a post aggeeessss ago with pictures describing what to do. Look that up.

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Old 08-17-2004, 19:49   #3 (permalink)
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Re: Can anyone help?

hmmm it just so happens I will be in melb this weekend ( well saturday or sunday) so if your easy on time i will pop down and have a look.

but yeah it does sound like bad timing. did you change te fuel pump. if you havent you need to do that.
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Old 08-17-2004, 21:52   #4 (permalink)
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Re: Can anyone help?

Sounds like you haven't done the "wire mod" as sunny suggested. Same thing happened to me on two occasions that i did an mpfi conversion (don't ask ). I assume that you using a cfi engine loom with an mpfi injector loom?? The way it was described to me, the ISC ground wire on a cfi engine loom is on a seperate plug while on an mpfi engine loom it is on the large round plug that connects to the injector loom. All you need to do is run a wire from this seperate plug on the engine loom to the correct spot on the injector loom. It's a four wire plug with a grey white wire on it. You need to splice a wire from this to a big grey wire on the mpfi injector loom. (if that makes sense). So in actual fact your ISC is not operational yet and therefore your engine stalls when under load and will sometimes only start with the throttle open.
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Old 08-17-2004, 22:30   #5 (permalink)
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Re: Can anyone help?

Saturday I should be able to come have a look for you, what suburb is the car in roughly anyway, and if Karl will be there even better if he has the rest of my body kit so I can get on with painting my car, right NZ.

PS: I have a timing light.
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Old 08-18-2004, 01:32   #6 (permalink)
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Re: Can anyone help?

Failing that, I know it sounds dumb but are your spark plug leads on the right way after you changed the dizzy? Can make it run like crap.
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Old 08-18-2004, 03:31   #7 (permalink)
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Re: Can anyone help?

Ok, one question at a time.
Yes, the isc motor does have that extra wire connected. I reckon I read just about every post on here about the conversion before I tried it.
Yep, I changed the fuel pump, that was a real pain to do. Ended up breaking the old lock ring off and just putting a new one on. Fuel delivery is definately not a problem, I know that. When the map sensor hose is disconnected, the car will idle, but runs incredibly rich.
The spark plug leads were on incorrectly when I first put the manifold back on, but I've fixed that since. It wouldn't start at all, moving the leads around one post to the way they should be at least got it to start.

The car is currently in Oakleigh. Saturday is best for me, but anytime during the day is ok, it doesn't matter what time.
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EA GL-Ghia pseudo operator
3.9 MPFI converted 4 speed
2.5 inch exhaust
NC Ghia interior (except rear trims)
Fairmont audio (with 4 speakers)
Cruise control
S-pac cluster with white dials
Trip computer and Fairmont interior lighting.
Half wired Ghia BCM.
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Old 08-18-2004, 06:16   #8 (permalink)
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Re: Can anyone help?

Ok, sounds like bad timing!

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Old 08-18-2004, 10:30   #9 (permalink)
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Re: Can anyone help?

Bad timing, or perhaps a faulty ISC??
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Old 08-18-2004, 14:05   #10 (permalink)
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Re: Can anyone help?

Did you use the Mpfi gasket?
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