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

EGR?

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Old Mar 27, 2003 | 05:36 PM
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From: Longview Texas
Default EGR?

I am getting codes 23 and 45 on my 92 LT1. Looking into the various manuals I have says its either the left side oxygen sensor, a vaccuum leak or the EGR going out. Where on that engine is the EGR so I can test it? My books are ambigous - some say here, others say there. Whats the best way to test it? I am thinking this is why I am getting a hi-rpm breakdown and a low-speed surge. This has cause me to have a bit of anguish, especially last night when to happened letting a blown V-6 mustang motor off. :banghead:
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Old Mar 27, 2003 | 05:38 PM
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Default Re: EGR? (rogerb)

You could just have a lose or broken vacuum hose.
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Old Mar 27, 2003 | 05:48 PM
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Default Re: EGR? (hngacurv)

Hope thats it - as soon as the engine cools and my blood pressure goes down (really) I'll take a look. :yesnod:
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