P2279
Read the instructions below then 
start the fault diagnostic procedure.
Symptom: 
 
  
 
 
  
  
   
   
    
    
     
     
     Mass Air Flow, Lower Than Expected
    
    
     On-Board Diagnostics
    
   
   
    
    
   
   
    
     Fault criteria:
    
    
    
   
   
   
    
     
      
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        The control module identifies a mechanical fault in the following components using internal evaluation logic:
         
         
        
         Intake system
         
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