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

EGR Question

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Old Apr 27, 2011 | 09:55 PM
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Default EGR Question

So being a dumb *** I bought a lightly used egr valve off the forum for my 92 lt1 6sp car and the egr valve is for an auto. What is the difference between the two? They look identical and I can't find any physical differences. Only difference that I could possibly think of is the vacuum required to operate the two might be different. Anyone know what the difference is or know if it would be an issue to use the auto egr on a 6sp? Thanks.
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Old Apr 27, 2011 | 10:41 PM
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From: Magnolia Tx
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The 6sp EGR valve flows more exhaust gas than the auto EGR valve does. Your car may not notice the difference or it might set an EGR code. Try
it, it may work fine. If you have a high flow exhaust, it will likely set a
code.
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