P0004moderate severityPowertrain

Fuel Volume Regulator Control Circuit High

on 2017 Maserati Levante 3.0L V6 Twin Turbo · 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.

Other Powertrain codes on this vehicle

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