Circuit/System Testing

P0506

1. Verify the following conditions do not exist:
   • The engine speed is limited. Mechanical Condition
   • Parasitic Load On Engine
   • Exhaust System - Restricted
   • If a condition exists 

     Repair as necessary

   • Go to next step: If no conditions exist 
2. All OK.

P0507

1. Verify the following conditions 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 exists 

     Repair as necessary

   • Go to next step: If no conditions exist 
2. All OK.