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Vacuum Help

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Old May 16, 2012 | 11:21 AM
  #1  
Jcase350's Avatar
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Joined: Mar 2009
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From: OKC Area
Car: 90 Camaro Iroc-z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Vacuum Help

I am working on a 90 Camaro 350 TPI. I just replaced the injectors and think I may have crossed a couple of vacuum lines. It is idling almost like it has a miss. Can anyone tell me where the vacuum hose from the throttle body goes to? Also, where does the line from the vacuum canister(behind drivers side headlight) go to? Also, the 2 lines that come off the EGR solenoid? I have following the vacuum diagram as best I can but want to double check. Thanks in advance.
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Old May 16, 2012 | 05:54 PM
  #2  
vetteoz's Avatar
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Vacuum Help

Originally Posted by Jcase350
Can anyone tell me where the vacuum hose from the throttle body goes to?
Bottom port ( vac ) on TB goes to canister purge solenoid ( then to canister )
Top port is PCV supply air to pass side rocker cover

Originally Posted by Jcase350
the 2 lines that come off the EGR solenoid? .
One vac line goes to the EGR valve under plenum;
the other is the supply vac

Last edited by vetteoz; May 16, 2012 at 07:24 PM.
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Old May 16, 2012 | 06:27 PM
  #3  
Jcase350's Avatar
Thread Starter
Junior Member
 
Joined: Mar 2009
Posts: 97
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From: OKC Area
Car: 90 Camaro Iroc-z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Re: Vacuum Help

What about the vacuum line underneath the throttle body? Also what lines run to/from the check valve by the ignition coil?
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Old May 16, 2012 | 06:44 PM
  #4  
juanillox8's Avatar
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Posts: 820
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From: OX CA
Car: TOO MANY
Engine: 350 TPI / 350 TBI/6.0L VORTEC
Transmission: T5/AUTO/AUTO
Re: Vacuum Help

egr soilonoid... one to the egr valve the other to underneath trottle body

Last edited by juanillox8; May 16, 2012 at 06:57 PM.
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Old May 17, 2012 | 03:43 PM
  #5  
Jcase350's Avatar
Thread Starter
Junior Member
 
Joined: Mar 2009
Posts: 97
Likes: 0
From: OKC Area
Car: 90 Camaro Iroc-z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Re: Vacuum Help

Got those connected correctly....where does the vacuum port on the MAP sensor go...to the fuel pressure regulator?? One more...where does the 2 lines from the check valve next to the MAP sensor go? Thanks
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