Parts for your 2023 Subaru Impreza-Fuel pump

2023 Subaru Impreza fuel pump – what it does, how it’s cared for, and when to replace it

Yes, the 2023 Subaru Impreza absolutely uses a fuel pump. Technical references such as Subaru’s service information (STIS/Subaru TechInfo) and the Subaru Genuine Parts catalogue list an in‑tank electric fuel pump module for this model, and, because the Impreza’s 2.0‑litre boxer uses direct injection, there’s also an engine‑mounted high‑pressure pump fed by that in‑tank unit. Trade catalogues and workshop manuals back this up with test procedures for fuel pressure and pump priming specific to the 2017–2023 Impreza platform.

On the road, the in‑tank electric pump’s job is to lift petrol from the tank, filter it through the module’s strainer, and deliver a steady low pressure to the engine bay. The high‑pressure pump then boosts it to the thousands of kPa the direct‑injection system needs for clean performance and good fuel economy. If either pump under-delivers, the Impreza can become hard to start, feel flat under load, or set fault codes for fuel pressure.

There’s no routine replacement interval for the fuel pump on a 2023 Impreza