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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?

Tiny
MYSTIKALPPWERS
  • MEMBER
  • 1999 INFINITI I30
  • 3.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 98,000 MILES
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?
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Thursday, October 7th, 2021 AT 3:50 AM

2 Replies

Tiny
MYSTIKALPPWERS
  • MEMBER
  • 2 POSTS
Here's a photo.
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Thursday, October 7th, 2021 AT 3:51 AM
Tiny
SQM
  • 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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Thursday, October 7th, 2021 AT 7:55 AM

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