OBDII Code List

P179C VOLKSWAGEN - Main Pressure Valve Electric Fault

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Main Pressure Valve
  • Main Pressure Valve harness is open or shorted
  • Main Pressure Valve circuit poor electrical connection

Possible symptoms

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

P179c Volkswagen Description

The Engine Control Module (ECM) monitors the Main Pressure Valve. The ECM sets the OBDII code when the Main Pressure Valve is not to factory specifications.
OBDII Code P179c Volkswagen - Main Pressure Valve Electric Fault -

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