2001 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE

Base Pattern To Power Pattern

Fig 1: Base Pattern To Power Pattern
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Depending on throttle opening and vehicle speed, 16 areas as shown in the figure are set. Accelerator depression speed for pattern changeover is set for each area.

When the accelerator depression speed exceeds this set value, the pattern changes from base to power.

Fig 2: Base Pattern To Power Pattern - Pattern Changeover
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Factory Service Tools

Use the Manual With the Right Hardware

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

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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.

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