@bogdan607: P0068

Mass Air Flow Sensor (G70/MAF) or Intake Manifold Pressure Sensor (G71/MAP) faulty


Dirty throttle body.


Vacuum leak.

P0491

Intake leak


Damaged AIR system components


Faulty AIR Solenoid Valve


Faulty AIR system relay

Możliwe że jeden wynika z drugiego.