Circuit/System Testing

P0506

1. Verify the conditions listed in the table do not exist:
   • Restricted exhaust system.
   • The engine speed is limited Mechanical Condition
   • Parasitic Load On Engine
   • If a condition is found 

     Repair as necessary.

   • Go to next step: If a condition is not found 
2. All OK.

P0507

1. Verify the conditions listed in the table do not exist:
   • Vacuum leak
   • Throttle Plate at Closed Position Incorrect
   • Verify the correct operation: Positive Crankcase Ventilation System
     • Incorrect connection: Positive Crankcase Ventilation System
     • Turbine Blades. Refer to: Crankcase Ventilation System Inspection/Diagnosis .
   • If a condition is found 

     Repair as necessary.

   • Go to next step: If a condition is not found 
2. All OK.