Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2023 Subaru WRX Base, Standard TransFACTORY OEM SERVICE PROCEDURE
Fuel Level Sensor: Inspection
- Check that the fuel level sensor has no damage.
- Measure the fuel level sensor float position.NOTE: When inspecting the fuel level sensor, perform the work with the sensor installed to the fuel pump.
(A) FULL (B) EMPTY (C) Fuel tank seating surface Float position Standard FULL - Fuel tank seating surface H1 187.2 - 194.2 mm (7.37 - 7.646 in) EMPTY - Fuel tank seating surface H2 21.1 - 28.1 mm (0.831 - 1.107 in) - Check the Ξ© between fuel level sensor terminals by the connector on top of the fuel pump.
| Float position | Terminal No. | Standard |
|---|---|---|
| FULL (A) | 1 - 4 | 7.7 - 9.7 Ξ© |
| EMPTY (B) | 230.9 - 235.9 Ξ© |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.