C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Would this vac line being disconnected cause Code 32?

Thread Tools
 
Search this Thread
 
Old Dec 2, 2001 | 02:30 PM
  #1  
Juliet's Avatar
Juliet
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Jul 1999
Posts: 7,072
Likes: 4
From: Maryland
Default Would this vac line being disconnected cause Code 32?

I was trying to work my way through the service manual to determine if my EGR solenoid is bad (causing my code 32 after prolonged highway driving). The first step was to remove the connector to the solenoid. Well it's darn near impossible to get a hand in there so as I was trying to disconnect the thing I noticed that the vacuum line which goes up to the bottom of the TB and runs to a Y which also runs to the EGR solenoid was not connected to the TB. I'm not 100% sure if I just now knocked it off on account of the cramped quarters in there, or if I'd forgotton altogether to connect it when I had the TB off the car for a rebuild a few weeks ago. :eek: I don't remember hooking it up, but then my memory is lousy soooooo....

If I were to be driving around with that vac line off the TB, is it possible to get code 32 even though the EGR valve & solenoid are perfectly functional? :D Yes I'm blonde - so go easy on me. :bb
Reply
Old Dec 2, 2001 | 03:51 PM
  #2  
DOCTOR J's Avatar
DOCTOR J
Burning Brakes
15 Year Member
 
Joined: May 1999
Posts: 760
Likes: 1
From: Greenwich, CT
Default Re: Would this vac line being disconnected cause Code 32? (Juliet)


Answer is yes, it's possible.
Reply
Old Dec 2, 2001 | 04:05 PM
  #3  
scorp508's Avatar
scorp508
Team Owner
Supporting Lifetime Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Default

How about hook it up and see if it goes away? :D
Reply
Old Dec 2, 2001 | 04:41 PM
  #4  
bogus's Avatar
bogus
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Default Re: (scorp508)

How about hook it up and see if it goes away? :D
works for me... I really don't think its going to cause the car to blow up... :jester
Reply
Old Dec 2, 2001 | 04:43 PM
  #5  
Rich B.'s Avatar
Rich B.
Melting Slicks
20 Year Member
 
Joined: Aug 2001
Posts: 2,516
Likes: 0
From: Lockport NY
Default Re: Would this vac line being disconnected cause Code 32? (Juliet)

Yes I'm blonde - so go easy on me. :bb
...???...

...My hair has turned gray...No wonder I can't remember what I had for dinner yesterday... :D
Reply
Old Dec 2, 2001 | 05:30 PM
  #6  
Juliet's Avatar
Juliet
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Jul 1999
Posts: 7,072
Likes: 4
From: Maryland
Default Re: Would this vac line being disconnected cause Code 32? (Juliet)

Well DOH. I'm blonde, but not THAT blonde. ;) Yes, I hooked it up. Thing is unless I go road test the beast for a long commute (no time for that) I won't know. This code 32 doesn't show up after a short trip down the street. I was debating whether or not to blow off the rest of the diagnostic procedure. It's been officially blown off with the hope that it was the unconnected vac line causing the 32. I really don't want to take the intake plenum off again to get at that solenoid. :eek: Why do today what I can put off till tomorrow? :seeya ~Juliet
Reply
Old Dec 3, 2001 | 11:31 AM
  #7  
dlmeyers's Avatar
dlmeyers
Burning Brakes
10 Year Member
 
Joined: Feb 2000
Posts: 824
Likes: 2
From: Camden SC
Default Re: Would this vac line being disconnected cause Code 32? (Juliet)

Hello,

Had this happen once. A hose from the solenoid going to the plenum connectors got disconnected. The symptoms are exactly as described. You drive about 4-10 minutes at highway speed and the SES light illuminates, stays on until another ignition cycle. Code 32 sets. Connected the vacuum hose, problem disappeared. Believe you are describing the connection toward the front of the plenum, somewhat underneath.

Hope you cure the problem. Hate those darn codes.

Keep the greasy side down.

dlmeyers 90 coupe zf6 3speed shocks
Reply
Old Dec 3, 2001 | 12:06 PM
  #8  
MDC9966's Avatar
MDC9966
Burning Brakes
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2001
Posts: 1,160
Likes: 73
From: Sumter, SC
Default Re: Would this vac line being disconnected cause Code 32? (Juliet)

That lack of vacuum should cause a code 32. An easy check is the heat tube. Let the car warm up and check the tube for heat. It will be hot but only about as hot as the intake. Go drive the car around the block a couple of times. As soon as you get a chance pop the hood and check the tube again. Since hot exhaust is going through it now it will be extremely hot. I wouldn't suggest touching it but you should feel a noticable difference in the heat coming from the pipe.
A meat thermo might let you read the temp I don't know. It should be about 400 with the EGR open.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Dec 3, 2001 | 12:38 PM
  #9  
Juliet's Avatar
Juliet
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Jul 1999
Posts: 7,072
Likes: 4
From: Maryland
Default Re: Would this vac line being disconnected cause Code 32? (Curtis629)

Well good news so far - the morning drive in went without any SES lights coming on. :) Let's hope it stays that way!!! THanks for all your help everyone. ~Juliet


[Modified by Juliet, 11:41 AM 12/3/2001]
Reply
Old Dec 3, 2001 | 01:22 PM
  #10  
scorp508's Avatar
scorp508
Team Owner
Supporting Lifetime Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Default Re: Would this vac line being disconnected cause Code 32? (Juliet)

Let's hope it stays that way!!!
Yes!!! Hey whats up with that red ribbon in your avatar? Second Place? First loser? :D ;)
Reply
Old Dec 3, 2001 | 02:30 PM
  #11  
Juliet's Avatar
Juliet
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Jul 1999
Posts: 7,072
Likes: 4
From: Maryland
Default Re: Would this vac line being disconnected cause Code 32? (scorp508)

Hey whats up with that red ribbon in your avatar? Second Place? First loser? :D ;)
Second loser. :) Definately that. Hey, you guys, take some lessons from Scorp the sweet talker. :jester ...NOT!!! :rolleyes:

Actually it's my NCRS 2nd flight ribbon. A mental note to myself to correct all the incorrect things with the car. ;) Considering I bought the car not knowing much, took it for flight judging without really doing much other than sorta cleaning it and fixing some broken stuff - and breaking some fixed stuff (wipers) I was pleased with the outcome. The vast majority of the points I lost were due to "condition deductions" - as in the car wasn't yet restored. I've since worked on replating, refinishing, repainting and restoring everything possible to return it to showroom as delivered from the factory appearance (and I've got a bunch more work to do)!!!

When I get my car to Top Flight status I'll put the blue ribbon in the avatar. BTW, Top Flight is 94% +. Second flight is 85% - 93% correct. So that means that out of every bolt, finish, paint, date code, component, wire, hose, layout and anything else you can contort the body to see on a shark they only found (in my case) between 7 and 15% of the total 4500 starting points they could deduct for. :D The more highly optioned the car, the more chance to loose points. My '70 has every factory option available to the base engine car except shoulder belts and leather interior. So it's even tougher to get Top Flight with a car like that. :)




[Modified by Juliet, 1:37 PM 12/3/2001]
Reply
Old Dec 3, 2001 | 02:35 PM
  #12  
Juliet's Avatar
Juliet
Thread Starter
Le Mans Master
20 Year Member
 
Joined: Jul 1999
Posts: 7,072
Likes: 4
From: Maryland
Default Re: Would this vac line being disconnected cause Code 32? (scorp508)

Speaking of Avatar's.... Where'd yours go Scorp? And how did you manage to get to 115%? Gee, I thought you were something below 100 a few weeks ago. :lol: ~Juliet :seeya
Reply
Old Dec 3, 2001 | 03:22 PM
  #13  
scorp508's Avatar
scorp508
Team Owner
Supporting Lifetime Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Default

Speaking of Avatar's.... Where'd yours go Scorp?
My custom one was lost when I chose the american flag. I've since turned it off.

And how did you manage to get to 115%? Gee, I thought you were something below 100 a few weeks ago.
I was at 75%. Dont' ask why I'm at 115 now. i'm not happy about it. Grrr.... :mad
Reply

Get notified of new replies

To Would this vac line being disconnected cause Code 32?





All times are GMT -4. The time now is 08:51 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE