17433/P1025/004133

From Ross-Tech Wiki

P1025 - Fuel Pressure Regulation Valve (N276): Mechanical Failure

Possible Symptoms

  • Malfunction Indicator Light (MIL) ON
  • High pitched whining noise from engine when idling.
  • ECM may also have stored in memory, P0088 - Fuel Rail/System Pressure: Too High.

Possible Causes

  • When found in 2006 to 2009 Volkswagen Passat, Passat CC and Touareg with 3.6L gasoline engines it is possible the HPFP (High Pressure Fuel Pump) / camshafts are out of time.


Possible Solutions

  • When found in 2006 to 2009 Volkswagen Passat, Passat CC and Touareg with 3.6L gasoline engines:
    • Check MVB group [208] and [209] with engine idling, if greater than [8 degrees(+/-)] the camshafts and HPFP are out of time
    • See VW Tech Tip [01-16-05] for exact repair details.

Special Notes

  • VW Tech Tip only applies to the 2006 to 2009 Volkswagen Passat, Passat CC and Touareg with 3.6L gasoline engines.
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