There is a Y connection metal tube from my fuel pump to my air intake, to the engine, can you tell me what this is for?

1999 INFINITI I30
98,000 MILES • 3.0L • V6 • 2WD • AUTOMATIC
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MYSTIKALPPWERS
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There is a metal tube that is not connected to anything nor covered. It's a y connection from my fuel pump to my air intake, to the engine.

I'm having acceleration issues and was checking for leaks. What is this, where does it connect to and is it supposed to be open?
Oct 6, 2021 at 8:50 PM
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MYSTIKALPPWERS
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Here's a photo...
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Oct 6, 2021 at 8:51 PM
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SQM
  • ✓Experienced Mechanic
  • 6,383 POSTS
Hello,

It is little difficult to see the hose from the picture.
It should be vacuum hose.
Possibly for the fuel pressure regulator.
Start the engine and see if there is any suction on that hose.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Let me know what you find.
Thank you.
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Oct 7, 2021 at 12:55 AM
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