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10-21-2007, 12:42 PM
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#1 | |
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AF Newbie
Join Date: Oct 2007
Location: Dubai
Posts: 1
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Slow! Cat. Overheat
Hi Guys, I'm getting this message in my 740i 1995 model ( SLOw! CAT. OVERHEAT ) , appreciate if anyone can give me some info about it.
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10-23-2007, 02:11 PM
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#2 | |
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AF Regular
Join Date: Apr 2005
Location: Calgary, AB, Canada
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Re: Slow! Cat. Overheat
Basically what is happening is your fuel mixture is too rich, dumping more fuel into the exhaust than it should be and as a result of the heat of the exhaust, heating up the fuel in the cats and overheating the cats.
You're looking at O2 sensors, MAF, fuel pump or regulators, anything along those lines.
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