V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

V6 vacuum diagram

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Old Apr 14, 2012 | 04:08 PM
  #1  
jaymzallyn's Avatar
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From: Grants Pass, OR
Car: 89' Camaro RS
Engine: 2.8 MPFI
Transmission: borg warner 5 speed
Axle/Gears: stock
V6 vacuum diagram

I decided for my weekend project I was going to install a new EGR valve, (engines been being a dog under acceleration lately and throwing a 32). I thought while I was at it I'd re-kit my vacuum lines. Unknown to me, finding an accurate vacuum diagram for these engines is next to impossible online. I ended up having to swallow my pride and drive to the shop I work at and use SI to get a decent one. So for all of you who have and will have need for this, here you go.
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Old Apr 14, 2012 | 04:23 PM
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Engine: Lb9
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Re: V6 vacuum diagram

For your code 32 I would be looking at the solenoid first than the wiring to the ecm and than the ecm. when a code 32 hits you will go into LHM. All the diagrams are Already here.

https://www.thirdgen.org/forums/tech...iagrams-i.html
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Old Apr 14, 2012 | 04:34 PM
  #3  
jaymzallyn's Avatar
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Joined: Jul 2011
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From: Grants Pass, OR
Car: 89' Camaro RS
Engine: 2.8 MPFI
Transmission: borg warner 5 speed
Axle/Gears: stock
Re: V6 vacuum diagram

Wow, just when I thought I'd looked everywhere. Now I know what it's like when I see a user who starts a new thread for something that has already been well covered previously and think "idiot".
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Old Apr 14, 2012 | 05:06 PM
  #4  
jaymzallyn's Avatar
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Joined: Jul 2011
Posts: 33
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From: Grants Pass, OR
Car: 89' Camaro RS
Engine: 2.8 MPFI
Transmission: borg warner 5 speed
Axle/Gears: stock
Re: V6 vacuum diagram

Did turn out to be just the valve. What I found actually made my day though. No gasket, completely frozen diaphragm, and the best part.......in place of an orifice washer, a warped 1981 dime with a 3/32 hole drilled through the middle. Just reinforces the stereotype that most of these cars at one point or another have spent some time in a trailer park.
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Old Apr 14, 2012 | 05:19 PM
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: V6 vacuum diagram

That's awesome !!!
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