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2017 BMW 750I
4.4L V8 Twin-Turbo N63•RWD•AUTOMATIC•gas•turbo
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Repairs0Labor489Torque5251Fluid7DTC1487Battery1Maintenance0Recalls0
P0004moderate severityPowertrain

Fuel Volume Regulator Control Circuit High

on 2017 BMW 750i 4.4L V8 Twin-Turbo N63 · RWD

What this code means

The PCM detected a higher than expected signal from the fuel volume regulator control circuit.

Symptoms

  • Check Engine Light
  • High fuel pressure
  • Rich running
  • Black exhaust smoke

Common causes

  • Open in regulator ground circuit
  • Faulty regulator
  • PCM driver failure
  • Wiring issue

Diagnostic steps

  1. Check circuit voltage
  2. Test regulator resistance
  3. Inspect ground connection
  4. Check PCM output

Repair notes

Repair open circuit or replace regulator.

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