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

Help with a code 32 on a 91

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Old Mar 6, 2002 | 08:47 PM
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From: Lilburn Ga
Default Help with a code 32 on a 91

Hey guys, I finally got a scanner hooked up to my 91. With the ignition on, but engine not running, I tested the car. A code 32 EGR came up. I need to know what to replace, I know there is a EGR solinoid and EGR valve, so which one to replace when you get a code 32? For whats its worth, the car is a 6 speed model. I dont know if that matters or not...
Does anyone know where I can get a affordable replacement part(s)?
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Old Mar 6, 2002 | 08:52 PM
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From: Woodstock GA
Default Re: Help with a code 32 on a 91 (soundkillr)

Have you done anything to the exhaust system? Also if you have not check vaccumn hoses under the throttle body on the drivers side it's not that uncommon for hoses to get knocked out from the throttlebody or pulled out from the EGR solenoid.

David Fulcher
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Old Mar 6, 2002 | 08:58 PM
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From: Lilburn Ga
Default Re: Help with a code 32 on a 91 (soundkillr)

The car is bone stock. I will check those hoses around the TB, but to be honest, I dont think thats it, I have looked at that area closely, and am pretty sure I would have noticed a loose hose. If thats not it, and ideas what to simply replace? I know a bad egr can cause a car to detonate, plus fail emmisions, and I want to fix it asap. BTW where is the egr valve located? I know the solinoid is on the passenger side, near the rear of the intake...
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Old Mar 6, 2002 | 09:09 PM
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Default Re: Help with a code 32 on a 91 (soundkillr)

The most common cause of this code is a bad or intermittent EGR switch which is located on the EGR pipe between the exhaust manifold and the intake manifold. Replace this switch first when you get this code. Next, check electrical connections at EGR valve solenoid and then the ECM. Check all vacuum lines for leaks especially around the EGR valve. Possible ECM failure
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