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what is this????

Old Jul 16, 2007 | 02:07 AM
  #1  
kowboy59's Avatar
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From: kissimmee fl
Car: 88 iroc-z z-28
Engine: 383
Transmission: th400
Axle/Gears: 3.42
what is this????

I have no ide what this is or do i even need this vaccum?
Attached Thumbnails what is this????-untitled.jpg  
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Old Jul 16, 2007 | 02:13 AM
  #2  
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Re: what is this????

yes you need it.

the line goes to a T fitting that attaches to the underside of your throttle body on one side, and other side continues on to the canister sitting in the driver's side front corner.

BTW....what are you doing to the car?

Last edited by Synful; Jul 16, 2007 at 02:16 AM. Reason: Automerged Doublepost
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Old Jul 17, 2007 | 12:35 AM
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From: kissimmee fl
Car: 88 iroc-z z-28
Engine: 383
Transmission: th400
Axle/Gears: 3.42
Re: what is this????

im replacin all the injectors. so its to the throttle body? I believe it was blocked off already on the throttle body.
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Old Jul 17, 2007 | 02:18 PM
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Re: what is this????

ya if we're talking about the same thing.

the L shaped object takes a line from the EGR and a line from the underside of the TB and vapor canister.
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Old Jul 18, 2007 | 03:38 PM
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From: kissimmee fl
Car: 88 iroc-z z-28
Engine: 383
Transmission: th400
Axle/Gears: 3.42
Re: what is this????

I thynk that was taken out. lol not sure I just recently bought the car. Also where does the hose from the fuel pressure regulator go to again. I have a semi major brain fart at the moment.
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Old Jul 18, 2007 | 08:16 PM
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Re: what is this????

passenger side back of the plenum
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Old Jul 19, 2007 | 08:37 PM
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From: Valparaiso, IN
Car: 89 formula 350
Engine: 5.7L (L98)
Transmission: 700R4-(shift kit,corvette servo)
Axle/Gears: borge warner-3.27
Re: what is this????

This is actually your egr solenoid vacuum pickup. The way it is supposed to be routed is one line to the egr to open it and the other line to under the throttle-body to provide vacuum. The solenoid will use this and provide vacuum to the egr when needed. If disconnected, the egr will not work as I have found out the hard way by not passing emissions. Make sure these are all connected properly.
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Old Jul 21, 2007 | 01:18 AM
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From: kissimmee fl
Car: 88 iroc-z z-28
Engine: 383
Transmission: th400
Axle/Gears: 3.42
Re: what is this????

wat does the egr exactly do
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