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Mystry Hose 

 

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 Post subject: Mystry Hose
Posted: Wed Jan 18, 2006 12:16 pm 
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Can someone please tell me what the hose that comes out of the exhaust manafold and goes under the air filter is and what it does / is it needed. Thanks!

- MIKE
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Posted: Wed Jan 18, 2006 12:44 pm 
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mm being a Ea i am thinking it is either the EGR
exhasut gas recirculation where some exhaust gasses are brought back into the engine for emisions

is it silver?
could be a pre heat for the incoming air again to comply with emisons

 

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Posted: Wed Jan 18, 2006 4:38 pm 
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it doesnt actually suck exhaust fumes just hot air from around the exhaust manifold. Its mainly there to warm the engine up quick on cold days i think? or maybe emissions. Didnt know anybody was still running a cpi car on here lol.

 

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Posted: Wed Jan 18, 2006 4:51 pm 
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If its plumbed into the exhaust then its EGR - altho usually this is done via castings in the manifold and head.

If it just 'hovers' above a hot exhaust then chances are there is a summer/winter tap on the air filter - as per carby cars...

Lol, yeah - get on to an MPFI conversion!!!

 

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Posted: Wed Jan 18, 2006 5:03 pm 
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The hose is there to pump hot air straight into the snorkel, hence the name hot air duct however i'm not sure of what it achieves, maybe just an increased air flow.

 

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 Post subject: ??
Posted: Wed Jan 18, 2006 5:10 pm 
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If the pipe is a very fragile tin foil type and the car is CFI then it is to help in cold weather in smoother running when first started etc. usually has a temp controlled vac pipe near the tennis racket airfilter to block this off when engine temp is above a certain temp.
As far as I know no E serier had an EGR valve as everything was controlled by the ECU for emmisions.

 

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Posted: Sat Jan 21, 2006 11:27 am 
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Ahhhhhh. How much would i pay to convert it to mpfi ? Doesnt look to hard to do so i might give it a go.

- mike
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