2003 Subaru STI Fuel Injection Pressure Regulator. A device - 22670AA381 | Fairfield Subaru, Fairfield CA

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Fuel Injection Pressure Regulator
This Fits Your 2003 Subaru STI

Part Number: 22670AA381
Supersession(s): 22670AA380

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A device to control the pressure of the fuel to the fuel injectors.

REGULATOR ASSEMBLY-PRESSURE Fuel Injection Pressure Regulator

Fits Legacy, Outback

Fuel Pressure Regulator
If your fuel pressure regulator is in need of repair, your 2003 Subaru STI may experience extended crank times or buck or hesitate under acceleration.

FUEL PIPING

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Diagram FUEL PIPING for your 2003 Subaru STI

#22670

Required: 1

FUEL PIPING (FRONT) '05MY-'06MY

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