cookie-x14xe
Member
Registered: 14th May 09
Location: Bideford, Devon
User status: Offline
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could any body tell me what this is and if it is neccessary to have it connected please as it makes quite a loud whining noise when ever the car is started from cold which last a couple of minutes.
i have noticed the wiring for this is just a plug would it be safe to disconnect?
any help appreciated cheers cookie
[Edited on 01-08-2009 by cookie-x14xe]
[Edited on 01-08-2009 by cookie-x14xe]
[Edited on 02-08-2009 by cookie-x14xe]
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Shane
Member
Registered: 10th Jan 04
User status: Offline
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for some reason im thinking its PAS but i have no clue
random
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Marshall
Member
Registered: 10th Nov 05
Location: Boston, Lincs Drives: 1.4 Sport & 2.2 astra
User status: Offline
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its called the SAI. pumps warm air from the exhaust back to the inlet, on cold starts, to help it reach operating temperature quicker. so yours is working correctly. Just unplug it if you want, shouldn't put the engine light on or affect running in summer.
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cookie-x14xe
Member
Registered: 14th May 09
Location: Bideford, Devon
User status: Offline
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ahh thats good then thanks for the help guys.
Thought there was some thing wrong as it never used to make the noise.
I have now disconnected it and all seems fine.
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john_c20xe
Member
Registered: 10th Feb 08
Location: Eastbourne, EastSussex
User status: Offline
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have a search before you post.
this has been covered to many times before
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cookie-x14xe
Member
Registered: 14th May 09
Location: Bideford, Devon
User status: Offline
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i looked through but its slightly difficult when u dont know the name of the thread your looking for.
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3lfz
Member
Registered: 16th Nov 08
Location: Torquay
User status: Offline
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Hrd to search when you aren't a premium too, Devon! 
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cookie-x14xe
Member
Registered: 14th May 09
Location: Bideford, Devon
User status: Offline
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he he cheers 3lfz
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flame
Member
Registered: 31st Mar 02
Location: N. Ireland
User status: Offline
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It pumps cold air into the exhaust manifold to make the cat work faster from start up- its the EGR that puts exhaust gas into the inlet.
You can remove the whole SAI system as long as the hole in the exhaust manifold is filled
[Edited on 01-08-2009 by flame]
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cookie-x14xe
Member
Registered: 14th May 09
Location: Bideford, Devon
User status: Offline
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cheers for that info flame maybe i can save a little weight getting rid of it .
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c20letandy1988
Member
Registered: 14th Apr 09
Location: Wirral, Merseyside drives: corsa turbo
User status: Offline
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rip it out load of poooo vauxhalls have made up lol all my sports ive ripped this out
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cookie-x14xe
Member
Registered: 14th May 09
Location: Bideford, Devon
User status: Offline
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if i remove the system how do i block the hole in the manifold, and am i right in thinkin as its a pump it just draws in air from atmosphere and as such there wont be any extra piping to such as inlet? thanks for your help so far everyone.
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DaveyLC
Member
Registered: 8th Oct 08
Location: Berkshire
User status: Offline
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quote:
Originally posted by Marshall
its called the SAI. pumps warm air from the exhaust back to the inlet, on cold starts, to help it reach operating temperature quicker. so yours is working correctly. Just unplug it if you want, shouldn't put the engine light on or affect running in summer.
It does the opposite, it pumps air into the exhaust to help warm up the cat...
The EGR valve lets exhaust gasses into the inlet.
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flame
Member
Registered: 31st Mar 02
Location: N. Ireland
User status: Offline
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If you cut the pipe off the cam shaped bit that is bolted to the exhaust manifold then fill that with weld is probably the best way- here is a pic I did on my V6 manifolds
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DaveyLC
Member
Registered: 8th Oct 08
Location: Berkshire
User status: Offline
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You can just leave the non-return valve connected.
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cookie-x14xe
Member
Registered: 14th May 09
Location: Bideford, Devon
User status: Offline
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cheers flame helps alot.
daveyLC by the non return valve do you mean the bit that the black tube goes to ?
so just disconnect the system but i can leave that bit there ? cheers
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DaveyLC
Member
Registered: 8th Oct 08
Location: Berkshire
User status: Offline
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The thing that looks like a flying saucer.. As long as thats still there with not vacuum pipe going to it, it will remain shut.
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