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

Code 32 and EGR Q.

 
Old 07-19-2001, 10:22 AM
  #1  
Narnian
CF Senior Member
Thread Starter
 
Member Since: Oct 2000
Location: Sacramento, CA USA
Posts: 145
Thanks: 0
Thanked 0 Times in 0 Posts
Default

I changed the diagnostic switch about two years ago when I was getting code 32. I've been getting code 32 intermittent for four months now. Last week I got a solid 32, and the engine began running real rough, as well as occasionally stalling at idle. Do I need to go through all the steps outlined in the service manual, or can I just replace the EGR valve?
BTW, it's an 86 with a slightly modified L98, stock cats.

[This message has been edited by Narnian (edited 07-19-2001).]
Narnian is offline  
Old 07-19-2001, 12:34 PM
  #2  
RICH86'ZZ4
CF Senior Member
 
Member Since: Oct 2000
Location: Port Charlotte, Florida
Posts: 269
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Narnian,

I had the same problem, mine was a bad solenoid switch, it couldn't hold vacume.

Rich
RICH86'ZZ4 is offline  
Old 07-19-2001, 12:43 PM
  #3  
Aggravated4life
CF Senior Member
 
Aggravated4life's Avatar
 
Member Since: Aug 2000
Posts: 14,132
Thanks: 0
Thanked 0 Times in 0 Posts
Cruise-In II Veteran
Default

Stumbling and stalling is usually the sign that the EGR valve itself isnt working right..like when it gets stuck open and wont close or etc.
Since its under the plenum, ts a little difficult to see what the valve diaphragm is doing..

On other cars, I was able to use my fingers and push up in the valve and see if it was stuck or if it moved up and down.
If you have a small mirror try to look under the egr valve through the side of the TPI and see if its closed.

Another way to check the valve...unplug the egr valve and put a cap on it..go for a drive and see if it runs any better.If it does, theres a good chance its the valve.

It always helps to go through the manual as well..it teaches you more how to troubleshoot it as you go along...so you can check the egr solenoid and etc as well.




Aggravated4life is offline  
Old 07-19-2001, 11:11 PM
  #4  
moffitt
CF Senior Member
 
Member Since: May 2000
Location: Puyallup Washington
Posts: 1,181
Thanks: 0
Thanked 0 Times in 0 Posts
Default

See if it runs ok with the EGR vacuum unhhoked. If not, sometimes a piece of carbon gets lodged in the EGR seat causing constant EGR flow and a vacuum leak. The EGR temp switch will see heat and set a code 32. Sometimes it can be dislodged by opening the EGR valve, either by lifting the diaphragm or supplying full engine vacuum (temporarily only). Reving the engine may help dislodge the chunk of carbon.
If nothing works, replace the EGR valve!
Good luck!

moffitt is offline  
 


Thread Tools
Search this Thread
Quick Reply: Code 32 and EGR Q.


Sponsored Ads
Vendor Directory

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: