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It's an DPFE sensor hose
That's tied in with your emmisions
Mos generally something is plugged up in your exhaust system or EGR system
Relacing the hose is only part of the problem
You have to find out what caused it
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Welcome to the FFO!

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That rubber line that is labeled GAS/FUEL ABG is made to a higher standard than regular vacuum line. It is rated to handle fuel and fuel vapor. And under pressure. There should be a number or numbers after the ABG. That application will not see burst pressures of a flammable liquid like gasoline that is under 30 to 50 psi pressure. But the line is rated for that kind of service. Get hose that is fuel rated in the same exact diameter. It is sold in bulk. If you want to buy new line, take the old one or at least a small piece of the old one to a fast moving parts store. (Auto Zone, O'Reilly's assuming you are in the US) They will cut the length you need.

As to that DPFE sensor. It looks like it is exposed to a lot of moisture or water. The sensor will heat up too. That combination of moisture and heat does a number on the metal. You might cover the sensor if exposed to water like a hat. Or just wax it if you are in a humid area. That will prolong the life of the new DPFE sensor.

The same thing happens on Fuel driver modules mounting on frame rails behind the left rear tire. The tire kicks up mud and dirt that sticks to the module. That retains water. And the module heat plus the constant contact with moisture in some areas and applications eats through the case. Then a no start failure occurs

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