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Old 07-02-2001, 07:41 PM
Benzmac Benzmac is offline
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
That hose is only there in the event that the fuel pressure regulator fails. If it does, the fuel goes from the back of the diaphram into the oil system via that hose.

In short, it will not change the emissions at all.

You may want to post the readings...This will give us an idea of what is wrong.
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