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

EGR CODE 32

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Old Aug 29, 2002 | 12:50 PM
  #1  
USPRIDE's Avatar
USPRIDE
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From: Huntley IL
Default EGR CODE 32

My dad has a '91 and has been getting an intermittent SES light. We used a code scanner and found it to be a code 32. My question is with something like that, is it usually the solenoid, or the little sensor/switch with the wire on it? What's the best way to tell? My feeling is it's the switch. Also, where might be a good place to buy a replacement part?

I posted this in the general section as well. :bb

Thanks in advance!!!
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Old Aug 29, 2002 | 01:05 PM
  #2  
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65Z01
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From: SE NY
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Default Re: EGR CODE 32 (USPRIDE)

If the SES sometimes comes on after a few minutes of driving at highway speeds it's likely the EGR valve under the rear of the plenum.

If it comes on consistently at thighway speeds it could be due to a vacuum leak, the solenoid, the sensor or the valve being defective.

With an intermittent problem you could run through the entire diagnostic scenario and still not observe the symptom.

You can get the valve at Auto Zone or Pep Boys; I don't think it is very pricey.

Once the plenum is removed (it may be necessary to also remove the runners) it takes a high quality open & box end 10mm wrench to remove the two bolts holding the EGR valve to the intake base.
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Old Aug 29, 2002 | 01:57 PM
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From: This vette goes to 11 Milford MA
St. Jude Donor '03-'05
Default Re: EGR CODE 32 (65Z01)

Mine would come on after driving on the highway for 1/2 hour. Turned out to be that little $7 switch on the EGR pipe. Got it at the dealer.
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