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

EGR on 85 intake

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Old Apr 27, 2008 | 12:37 PM
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Default EGR on 85 intake

I got to looking at my intake and there is no hole on the uppertunnel ram intake for the EGR tube on the driverside

is this supposed to be like that?
or so i have something very wrong?

all i see is a tube going to nothing. gasket has everything right and i was thinking maybe i have a different years plenums or tunnel ram
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Old Apr 27, 2008 | 12:43 PM
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Driver side? what are you describing?

85's EGR is internal, different from the other years.
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Old Apr 27, 2008 | 12:53 PM
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ill get pics in a lil bit

OK let me try this again
on the drivers side plenums there is the 4 big tubes and a smaller (bout 1/2 inch) tube that runs up to the tunnel but there is no hole for it to go into.

Idk if this tube should be there or what but it is and if its a water jacket or something then i dont want an vacuum leak of was leak all over the place
if this doesnt help pics will come soon
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Old Apr 27, 2008 | 01:07 PM
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OK heres what im talking about
This is the passenger side plenum and tunnel ram. notice the 1/2" hole



This the the drivers side. 1/2" still on the plenum but not on the tunnel ram



hope this makes it clear
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Old Apr 27, 2008 | 03:01 PM
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bump please help
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Old Apr 27, 2008 | 03:10 PM
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FWIW, I blocked mine off....don't know if TX has emissions test on state inspection.......
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Old Apr 27, 2008 | 03:24 PM
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Originally Posted by Mark85Vett
FWIW, I blocked mine off....don't know if TX has emissions test on state inspection.......
no emissions tests here
and next year im getting antique plates so it wont matter

so is it supposed to be like that?
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Old Apr 27, 2008 | 05:45 PM
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bump
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Old Apr 27, 2008 | 06:17 PM
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Looks like Cold Start injector provision to me.
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Old Apr 27, 2008 | 06:20 PM
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Originally Posted by vader86
Looks like Cold Start injector provision to me.
yea thats what it is

so i guess plug it?
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