Re: [Amc-list] dumping the snake

[Wrambler242@xxxxxxxxxxx]

I always thought it provided Oxygen [or air as it be] to help light off the catalytic converter and burn more "stuff".
Got to love those technological terms!

:]

--
Mark Price
Morgantown, WV
1969 AMC Rambler, 4.0L, EFI, T-5
2004 Grand Cherokee Laredo, 4.7L, Quadratrc II
" Chronic Pain Hurts"

 -------------- Original message ----------------------
From: Jim Blair <carnuck@xxxxxxxxxxx>
> Sometime in the early '90s they developed a cat that was anerobic (didn't need 
> the AIR pump after that) My opinion of the whole AIR system was that it just 
> used a measured mixture or air blended into the exhaust to convince the emission 
> test equipment there really was a drop in HCs and CO (especially in cars that 
> didn't even have a cat!)
> 
> 
> From: Wrambler242@xxxxxxxxxxx
> Subject: Re: [Amc-list] dumping the snake
> To: "AMC/Rambler owners, drivers and fans." <amc-list@xxxxxxxxxxxx>
> Message-ID:
> 	
> <040320080318.14801.47F44C8400021C36000039D12216548686CDCBCD0A0C079D9F059D0E03@c
> omcast.net>
> 	
>  
> They "played" with the system till they finaly managed to do away with the pump.
> I think the key was getting the exhaust to "draw" in enough outside air to light 
> of the cat or alter NOX levels.
> I don't know much about that kind of stuff, never had to figure it out, yet...
> Anyway, they went from pump to no pump over a few years.
> I think the later models just had feed tubes to the exhaust and cat, not the 
> tube manifold into the exhaust manifold.
>  
> --
> Mark Price
> Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10
> 
> 
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