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Unread 10-15-2007, 12:26 PM   #1
dryfire1
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Join Date: Sep 2007
Location: MARYLAND
Posts: 18
Bare Essentials

I have a 1988 jeep wrangler with a 4.2 L motor straight 6.
What would happen if i plug the tube that runs from the Exhaust maifold to the intake manifold. I believe its called a EGR tube.
Also there is a tube that runs from the exhaust manifold to the other side of the motor. ( pulse air upstream).
Any one tried that?

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Unread 10-18-2007, 07:04 PM   #2
jay-h
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1989 YJ Wrangler 
 
Join Date: Dec 2006
Location: , NJ
Posts: 4,081
Plugging them will do little for performance. The EGR can actually make it run a bit better, because it moderates combustion temperature.

As for the exhaust pulse streams, the engine will run about the same with or without.
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Unread 10-18-2007, 08:07 PM   #3
xxxflhrci
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Location: South
Posts: 3,650
I took all of it off of mine when I did the Weber.
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Unread 10-19-2007, 10:11 AM   #4
dryfire1
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Location: MARYLAND
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The Pulse air stuff im removing.
That seemed to remove some of the vacum leaks.

What all do you have hooked up with the Weber carbs.
Can i remove all the hoses going to the vacum canisters also?
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Unread 10-19-2007, 10:50 AM   #5
dryfire1
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Can i remove this tube. from
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