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.

2017 Subaru Forester 2.0XT PremiumFACTORY OEM SERVICE PROCEDURE

Drive Cycle Q

DTC	Item	Condition
P0191	FUEL RAIL PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE BANK 1	With the ignition switch ON (engine stopped), read the value in [Coolant Temp.]. If the engine coolant temperature meets the condition of ≥30°C, idle the engine for 30 minutes or more. If the engine coolant temperature does not meet the condition of ≥30°C, start the engine, wait until the engine coolant temperature meets the condition of ≥30°C, turn OFF the ignition switch once, then idle the engine for 30 minutes or more. At least 6 hours must have elapsed since ignition switch was OFF. For models with block heater, at least 6 hours must have elapsed without operating the block heater.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready Tools Compare Repair Quote Quote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.