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Old 05-31-2001, 09:03 AM   #3
89LXNB
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Join Date: Jul 2000
Location: San Jose CA
Posts: 149
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I think that one of them provides vaccum pressure to the egr valve, this so egr can dump back into the air bypass if needed but I would not need that with the air bypass valve removed.

Rick, I stumped Kim on this one too.
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