Engine-Codes - Mercedes-benz - P0001 MERCEDES-BENZ

P0001 MERCEDES-BENZ Code - Fuel Volume Regulator Control Circuit/Open

- Code Popularity: 1,980 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the P0001 MERCEDES-BENZ Code?

  • Faulty Fuel Rail Pressure Control Valve
  • Fuel Rail Pressure Control Valve harness is open or shorted
  • Fuel Rail Pressure Control Valve circuit poor electrical connection

|How to Fix the P0001 MERCEDES-BENZ Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|What is the cost to diagnose the P0001 MERCEDES-BENZ code?

Labor: 1.0

The cost to diagnose the P0001 MERCEDES-BENZ code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P0001 MERCEDES-BENZ code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the P0001 MERCEDES-BENZ Code Mean?

This Diagnostic Trouble Code (DTC) is stored in the Engine Control Module (ECM) when the system cannot correctly control the fuel pressure. The ECM uses feedback from the fuel pressure sensor to monitor fuel pressure. The fuel pressure regulator circuit integrity is also monitored to ensure the circuit and component are functioning correctly.
A few issues may cause this code to be set such as a faulty fuel rail pressure sensor, a mechanical fault with the fuel volume regulator could cause the valve to become stuck. An electrical fault such as an open circuit in the fuel volume regulator on a system with a normally closed valve will also cause this situation. A short circuit on the control wire of a normally open fuel volume regulator will also cause this fault.

Fuel Volume Regulator Control Circuit/Open

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