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2002 BMW M3
3.2L I6 S54•RWD•AUTOMATIC•gas•S54B32
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor498Torque3157Fluid8DTC1267Battery1Maintenance0Recalls5
P0088high severityPowertrain

Fuel Rail/System Pressure - Too High

on 2002 BMW M3 3.2L I6 S54 · RWD

What this code means

The fuel rail pressure is higher than the PCM commanded value.

Symptoms

  • Check Engine Light
  • Hard starting
  • Rich running
  • Injector damage risk
  • Black exhaust smoke

Common causes

  • Faulty fuel pressure regulator
  • Restricted fuel return line
  • Stuck fuel pressure relief valve

Diagnostic steps

  1. Monitor fuel pressure with scan tool
  2. Test fuel pressure regulator
  3. Check return line for restriction
  4. Inspect relief valve

Repair notes

Replace fuel pressure regulator or clear fuel return restriction.

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