93 Code 32 "EGR"
Thread Starter
Drifting
Joined: Sep 2005
Posts: 1,867
Likes: 3
From: Pasadena Maryland
93 Code 32 "EGR"
I just got a code 32 yesterday coming home from work. My shop manual says to hook up a TECH 1 and try to activate the EGR valve. I am thinking that the TECH 1 is an expensive GM type diagnostic tool? Does anyone know if the freeware software on the internet will perform this function? "Activate the EGR"?
Last edited by kalister1; Oct 7, 2005 at 07:33 AM.
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
Originally Posted by kalister1
My shop manual says to hook up a TECH 1 and try to activate the EGR valve. I am thinking that the TECH 1 is an expensive GM type diagnostic tool? Does anyone know if the freeware software on the internet will perform thai function? "Activate teh EGR"?
I doubt that any freeware is capable of it.
But, you can use a hand vacuum pump and a gauge to check the EGR system.
Tom Piper
Thread Starter
Drifting
Joined: Sep 2005
Posts: 1,867
Likes: 3
From: Pasadena Maryland
The manual gives a procedure that starts with activating the EGR Valve. The procedure goes into checking if it's the valve or the actuator/control module that's under the plenum. What amount of vacumm should open the EGR Valve? If the valve opens with vacumm and stays open, does that mean the actuator/control module is bad?
Team Owner
Joined: Aug 2000
Posts: 40,156
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From: San Pedro CA
The easiest way to diagnose a bad EGR is to monitor when the code appears.
If the code appears at startup, then the EGR code represents a bad EGR solinoid. If it takes 20 minutes of driving, then the EGR valve itself is bad.
If the code appears at startup, then the EGR code represents a bad EGR solinoid. If it takes 20 minutes of driving, then the EGR valve itself is bad.
Thread Starter
Drifting
Joined: Sep 2005
Posts: 1,867
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From: Pasadena Maryland
Thanks Bogus; it takes a good 15 minutes or more to set the code. I cleared it last night and it took 15 minutes to show up this morning. Shut the car off and restart it and the SES light is out.
Race Director
Joined: Aug 2001
Posts: 18,447
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From: Sheboygan Wisconsin
St. Jude Donor '04-'05-'06-'07-'08-'09-'10-'11-'12-'13-'14
my valve is bad, dealer says 160 for the part plus labor. also paid 85 to have them check the codes 
Am I being hosed? Do it yourself job? I have one day to fix it as I have a weekend trip planned. Thoughts??
Am I being hosed? Do it yourself job? I have one day to fix it as I have a weekend trip planned. Thoughts??
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
when I was throwing a code 32-I acted on advice from this forum-I replaced the EGR switch, some forum members state 95% of the time a code 32 is more than likely the switch (cheap) worked for me-of course mine is a 87.
Race Director
Joined: Sep 2005
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St. Jude Donor '07
While I have not performed this myself, yet, it appears to be a rather simple matter. Corvette Fever Magazine had an article a while back about 'Tracking Down The Troublesome Code 32' or similar. I found it helpful. Good magazine.
When it's my turn, I'll replace both at the same time. I'm already there and if one is bad, maybe the other is damaged.
-Kyle
When it's my turn, I'll replace both at the same time. I'm already there and if one is bad, maybe the other is damaged.
-Kyle
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Le Mans Master
Joined: Dec 2004
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From: Myrtle Beach SC
St. Jude Donor '05-'06
Originally Posted by SupaVette
most of the time when i've seen a code 32, it's been from a vacume leak. might be a cheap and easy thing to check 1st
Believe it or not mine went away when I found the intake hose was not sealing right allowing more air into the TB.
Le Mans Master
Joined: Jul 2004
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From: Clifton Park, NY ............Clearwater, FL ... 85 Original Owner
Originally Posted by rick lambert
when I was throwing a code 32-I acted on advice from this forum-I replaced the EGR switch, some forum members state 95% of the time a code 32 is more than likely the switch (cheap) worked for me-of course mine is a 87.
