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What do these red plugs on back of LS6 manifold...

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Old Aug 8, 2004 | 11:43 AM
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Default What do these red plugs on back of LS6 manifold...

hook up to? I'm deleting EGR and AIR. Do I keep these red caps on or plug something into there?

Also, the MAP sensor tab came broken off from the vendor. Can I use my old MAP sensor? You can see the tape on the one in the picture, but I don't want any problems so I'd like to put my stock one on the LS6.
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Old Aug 8, 2004 | 11:48 AM
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Ok, figured out the big one goes to the brake booster. Small one???
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Old Aug 8, 2004 | 11:54 AM
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Those red plugs are just covers so nothing gets in there. Yank them off.

The little line is a small vacuum line, but I don't exactly know where it goes. It's just a small rubber hose, but will cause nightmares if you leave it off.
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Old Aug 8, 2004 | 11:56 AM
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Small one goes to the HVAC for your A/C, heater, n defrost vents. You will know where it goes when you pull the ls1 intake off. It has the same stuff back there. If you are getting rid of your AIR there will be one less small vacuum line to hook up. The ls1 intake will have 2 small vacuum ports and 1 big one because of this.

Brad
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Old Aug 8, 2004 | 11:56 AM
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Thanks man, found the vacuum line. Any ideas on the MAP sensor? Can I reuse the stock one or does the LS6 need a different MAP for some reason? They seem to have differnt numbers on them.
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Old Aug 8, 2004 | 12:22 PM
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The map sensor should be in there already. If that photo you posted is your intake then it is. It is the female electrical plug pointing to the passenger side of the car. Just unplug from your old intake n plug in to the new one.

If that is not your intake and you do not have another MAP sensor just pull the one off your stocker and put it in the LS6.

Brad
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