P0170,P0171, P0172
Read the instructions below then 
start the fault diagnostic procedure.
Symptom: The malfunction indicator lamp is on.
Deterioration in drivability, unsteady idling.
Any other diagnostic trouble codes (pressure sensor, oxygen sensor).
 
  
 
 
  
  
   
   
    
     Adaptation faulty
    
    
      
    
    
   
   
  
   Symptom of fault
  
  
   The malfunction indicator lamp is on.
Deterioration in drivability, unsteady idling.
Any other diagnostic trouble codes (pressure sensor, oxygen sensor).
   
   
   
    Conditions
   
  
  
   The ECM has increased or decreased the injection times to the maximum without it
being possible to achieve lambda =
1.0.