How to remove and replace a fuel pressure regulator in a Nissan Pathfinder's fuel system?

Relieve fuel pressure, disconnect battery cable, remove air filter housing/upper intake manifold/engine cover, clean dirt from regulator, detach vacuum/fuel return hose, remove two screws, remove regulator, install new O-rings, lubricate with oil, reverse installation, tighten screws.

Genuine Nissan Pathfinder Fuel Pressure Regulator

Fuel Tank Pressure Regulator

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5 Fuel Pressure Regulators found

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Nissan Pathfinder Pressure Regulator Assembly
Part Number: 22670-0W000
$115.62 MSRP: $167.45
You Save: $51.83 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Fuel Pressure Regulator
- Replaced by: 22670-0W00A
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1996-2003 Nissan Pathfinder | LE, SE, XE | 6 Cyl 3.3L | VG33E
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Nissan Pathfinder Pressure Regulator Assembly
Part Number: 22670-5L320
$193.88 MSRP: $287.08
You Save: $93.20 (33%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Fuel Pressure Regulator
- Replaced by: 22670-5L32B
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 2000-2004 Nissan Pathfinder | LE, SE, XE | 6 Cyl 3.5L | VQ35DE
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Nissan Pathfinder Pressure Regulator
Part Number: 16240-12G01
$150.31 MSRP: $212.30
You Save: $61.99 (30%)
Product Specifications
- Other Name: Fuel Pressure Regulator
- Replaced by: 16240-03G15
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1987-1990 Nissan Pathfinder | DX, SE, ST | 4 Cyl 2.4L, 6 Cyl 3.0L | VG30I, Z24I
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Nissan Pathfinder Regulator-Pressure
Part Number: 16240-03G15
$150.31 MSRP: $212.30
You Save: $61.99 (30%)
Product Specifications
- Other Name: Fuel Pressure Regulator
- Replaces: 16240-12G01
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1987-1990 Nissan Pathfinder | DX, SE, ST | 4 Cyl 2.4L, 6 Cyl 3.0L | VG30I, Z24I
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Nissan Pathfinder Pressure Regulator Assembly
Part Number: 22670-88G00
Product Specifications
- Other Name: Fuel Pressure Regulator
- Warranty: This genuine part is guaranteed by Nissan's factory warranty.
Fits the following Vehicles:
- 1989-1995 Nissan Pathfinder | SE, ST, XE | 6 Cyl 3.0L | VG30E

Nissan Pathfinder Fuel Pressure Regulator

The engine gets the right amount of fuel, thanks to the Nissan Pathfinder Fuel Pressure Regulator, which keeps fuel pressure in the specified range. In a Nissan Pathfinder, the spring-loaded diaphragm, vacuum port and fuel return line connection of the Fuel Pressure Regulator is mounted to the fuel rail. It works by balancing pressure. The Fuel Pressure Regulator consists of a spring and diaphragm, which hold control of the return path until manifold vacuum pushes against the diaphragm enough to open the return path. When the throttle opening cuts down on the vacuum, the spring enables the Fuel Pressure Regulator to impede the flow back in the Nissan Pathfinder. Consequently, this ensures a higher pressure that increases the injector pulse width. When a unit sticks closed, the pressure becomes too high, producing a rich mixture. When a spring breaks or there is an internal leak, the pressure becomes too low, producing a lean condition. A few straightforward checks may help confirm that you have a faulty Fuel Pressure Regulator in your Nissan before you start to go into the other fuel system components. For instance, you can see if there is a pressure change when the vacuum hose is removed or when the return line is pinched.

If you need any OEM Nissan Pathfinder Fuel Pressure Regulator, feel free to choose them out of our huge selection of genuine Nissan Pathfinder Fuel Pressure Regulator. All our parts are offered at unbeatable prices and are supported by the manufacturer's warranty. In addition, we offer quick shipping to have your parts delivered to your door step in a matter of days.

Nissan Pathfinder Fuel Pressure Regulator Parts Questions & Experts Answers

Pressure Regulator Assembly
22670-5L320
Q: How to remove and replace a fuel pressure regulator in a Nissan Pathfinder's fuel system?
A:
Relieve fuel pressure, disconnect battery cable, remove air filter housing/upper intake manifold/engine cover, clean dirt from regulator, detach vacuum/fuel return hose, remove two screws, remove regulator, install new O-rings, lubricate with oil, reverse installation, tighten screws.