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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 03-16-2004, 15:57   #1 (permalink)
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Reading EEC-IV codes incorrectly?

Folks,
I'm still noticing that my car is going through more petrol than it normally does. I know it's the air-fuel mixture that is probably set incorrectly but I'm not discounting the possibility of the sensors being stuffed too.

Now riddle me this, each time I do a check on the error codes I'm having trouble reading whether I am getting an 11 twice or a 22. As the pulses are coming through I get a 1 then a 1/2 - 1 second pause then another 1 then a 1-2 second pause then a 1 then a 1/2 - 1 second pause then another 1.

11 - System fine
22 - MAP sensor out of range.

I'm guessing it is a 22 but I just need to be sure from your experiences before I go searching for a replacement or some carbon cleaner.

I get the same codes in both tests and in the KOEOff test I get the code in the memory section too after the 5 second pause and the separator pulse.

Thanks in advance folks.

Cheers,
Steve
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Old 03-16-2004, 16:15   #2 (permalink)
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Re: Reading EEC-IV codes incorrectly?

It repeats codes twice, so you can double check yourself, you would be getting 11 then 11 system fine.

so now what ya gunna do :0)
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Old 03-16-2004, 16:22   #3 (permalink)
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Re: Reading EEC-IV codes incorrectly?

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Originally Posted by Dellboy999
It repeats codes twice, so you can double check yourself, you would be getting 11 then 11 system fine.

so now what ya gunna do :0)
Now, I'm gonna ask in here, what do I do? Seriously, the EA is drinking more petrol than it used to and after a long drive home from work, some 30 minutes, I pull up in the drive, put her in park and the idle revs climb to 850-900, normally sits on 650-700. Adjust idle?

BTW, idle still feels lumpy which I am assuming is because of the extra petrol being used. Would injectors (in a CFI) leak petrol? I get a bit of black smoke in the mornings once I pull out of the drive way then everything is fine.

Cheers,
Steve.
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Old 03-16-2004, 21:35   #4 (permalink)
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Re: Reading EEC-IV codes incorrectly?

Could be ISC (altho suddenly not sure if they would have them on a cfi )

I'd do all the basics as well anyway - check leads, plugs, dizzy, electrical connectors are on properly etc. You can also check the O2 sensor with a multimeter - it might be a suspect worth looking at...
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Old 03-16-2004, 22:03   #5 (permalink)
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Re: Reading EEC-IV codes incorrectly?

I would look for leaks in your gaskets?
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Old 03-16-2004, 22:07   #6 (permalink)
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Re: Reading EEC-IV codes incorrectly?

To find leaks spray carby cleaner around the gaskets with the engine idleing, when you find a leak the carby cleaneris sucked and engine revs increase.
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Old 03-16-2004, 22:08   #7 (permalink)
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Re: Reading EEC-IV codes incorrectly?

Quote:
Originally Posted by LunaticSVT
I would look for leaks in your gaskets?
Lunatic and XR8 Lamah, I've just had the head gasket and new head put in just about a month ago and have just recently had the car serviced with specific attention paid to the ISC (yes they are present on the CFI models) as well as leads, new plugs and dizzy checked. The last time I checked the error codes, there was a 13 in there in regards to the ISC but that has been checked, ISC cleaned and no longer appears in the error code list at all, not even in memory.

The car runs smoothly and there is no real rough ride when I'm cruising, just when idling. I'll tackle the voltage on the O2 sensor; a good excuse to teach myself how to do it.

Cheers,
Steve
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