Action in service

Consequential fault due to consequent fault code entries:

• 0x191D01 Tank ventilation system: malfunction.

Replace differential pressure sensor of suction jet pump.

Check tank vent valve.

Replace fuel tank vent valve.

Check connection between tank vent valve and suction jet pump for tightness and correct installation.

• Check connection between tank vent valve and throttle valve for tightness and correct installation.

• Check line from tank vent valve to the suction jet pump and before compressor/throttle valve for tightness and correct installation.
• If fault 0x191D01 (tank ventilation system: malfunction) is entered, then replace tank vent valve.
• Reset mixture adaptation after fault elimination.