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Old 03-04-2004, 16:16   #1 (permalink)
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EA Running On

I have an '88 EA single point fuel injected falcon. Over the last couple of months, it is more and more keen to run on. When I am turning it off, it coughs and coughs, to the stage where I am stopping it on the clutch. I am about to replace the leads and plugs, but don't think this will help at all. I am lost for ideas about what is causing it. Has anyone experienced the same/similar problems. Any advice or information would be welcome.

Thanks

Dave
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Old 03-04-2004, 16:23   #2 (permalink)
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Re: EA Running On

might be your timing .. it could be out

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Old 03-04-2004, 16:28   #3 (permalink)
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Re: EA Running On

On the XF there was a fuel cut off solenoid on the carby, that would like to fail, staying open, and causing run on, you may have a similar thing.
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Old 03-04-2004, 16:37   #4 (permalink)
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Re: EA Running On

How hot is it getting? I've noticed that the CFIs in particular will do this if they're too hot.
Otherwise I suggest timing, they'd be the two main culprits.
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Old 03-04-2004, 17:00   #5 (permalink)
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Re: EA Running On

It is worse on a hot day, but I have just had most of the cooling system fixed. How does the timing affect it, given that there should be no spark to the engine?
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Old 03-04-2004, 17:10   #6 (permalink)
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Re: EA Running On

I have heard that excessive deposits on top of the pistons get red hot, acting like a spark plug and there for burning fuel as per normal, until these deposits cool off. This may not be entirely true but it makes sense to me.

I wouldnt be surprised if timing was contributing to it though. That and perhaps crap fuel. Try some injector cleaner when you fill up next, it might help clean some of the crap out.
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Old 03-04-2004, 18:21   #7 (permalink)
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Re: EA Running On

According to my manual, possible causes are:

* Idle speed too high
* Ignition timing incorrectly adjusted
* Thermo-controlled air cleaner heat valve not operating properly
* Excessive engine operating temperature
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Old 03-04-2004, 21:06   #8 (permalink)
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Re: EA Running On

Quote:
Originally Posted by Dave_B
I have an '88 EA single point fuel injected falcon. Over the last couple of months, it is more and more keen to run on. When I am turning it off, it coughs and coughs, to the stage where I am stopping it on the clutch. I am about to replace the leads and plugs, but don't think this will help at all. I am lost for ideas about what is causing it. Has anyone experienced the same/similar problems. Any advice or information would be welcome.

Thanks

Dave
Running on requires fuel.
I would suspect as was the case with a mates EA CFI,that your injectors are leaking after you have turned off the computer and fuelpump
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Old 03-05-2004, 02:36   #9 (permalink)
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Re: EA Running On

Yeh it's CFI but, they pretty much all leak to some degree. Remember the CFI manifold will also trap vapour for a little while, which can be sucked in and burnt.
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