plugged cat

[Nick Lawrence]

Has any one else worked on a car that stopped running because a right size 
chunk blocked the exhaust passage?  Thats makes a bad day!
----- Original Message ----- 
From: "David Ullrich" <david.ullrich at gmail.com>
To: <quattro at audifans.com>
Sent: Thursday, February 28, 2008 3:34 PM
Subject: Re: plugged cat


> Just as a side note...if your car runs really rich, it will head the cat 
> to
> the point where the cat matrix shatters and is dispelled out the muffler.
> Not that I'd EVER recommend doing this...its bad for the environment...but
> I've HEARD that some people will purposely set their engines to run really
> rich to "force" the car to puke out it's cat guts. ;)
>
> Dave
> -Audiless for now
> -WTB: 1987 CGT "Triple White"
>
> On Thu, Feb 28, 2008 at 3:16 PM, Danton J.A. Cardoso 
> <djacardoso at gmail.com>
> wrote:
>
>> As do I, in rural Missouri, no emissions test.
>>
>> On Thu, Feb 28, 2008 at 2:01 PM, Mike Arman <Armanmik at earthlink.net>
>> wrote:
>> >
>> >
>> >  Regarding removal of pollution control and other/various smog control
>> >  devices, I *think* the Feds say that shops can't remove them at all,
>> but
>> >  owners can if the car is more than 5 years old and (or) has at least
>> >  50,000 miles on it.
>> >
>> >  Notwithstanding the federal regs, there are states that require this
>> >  stuff to work no matter what the age or the mileage (California comes
>> to
>> >  mind) and there are other states/local jurisdictions that don't care 
>> > as
>> >  long as the car passes the sniff test, and there are places that don't
>> >  care period.
>> >
>> >  That said, remember that the ECU expects and is programmed for certain
>> >  conditions of operation (back pressure should be X, air inlet temp
>> >  should be Y, and so forth), so that removing the cat may upset
>> something
>> >  else in these notably picky and finicky cars.
>> >
>> >  I'd suggest pulling the codes first. That will tell you what's really
>> >  wrong with the car. The "check engine" light is like a baby crying, 
>> > all
>> >  it tells you is that something is wrong, not WHAT is wrong.
>> >
>> >  Dealers tend not to like simple repairs, they don't make much money on
>> >  them. It is much more profitable for them to claim the cat is plugged
>> >  and you need a new one (or two) at $,$$$ and they'll fix the one-wire
>> >  plug that fell off (which is the actual problem) as they install your
>> >  new exhaust system.
>> >
>> >  Personally, I like the Florida inspection system - none.
>> >
>> >  Best Regards,
>> >
>> >  Mike Arman
>> >  90V8Q
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>>
>>
>>
>> --
>> Danton J.A. Cardoso
>>  _______________________________________________
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>> quattro at audifans.com
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>>
>
>
>
> -- 
> David G. Ullrich
> Cavu Consulting
> "Finally, Affordable Technology Help"
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