Circuit/System Testing

P0506

1. Verify none of the following conditions exist.
   • A crankcase overfill can cause oil to be forced through the positive crankcase ventilation (PCV) system.
   • Restricted exhaust
   • Mechanical conditions that limits engine speed.
   • Parasitic load on the engine--For example, a transmission condition, a belt driven accessory condition.
   • If a condition is found 

     Repair as necessary.

   • If a condition is not found 
2. All OK.

P0507

1. Verify none of the following conditions exist.
   • An outside source that has allowed oil or fuel to enter the air induction system.
   • Fuel in engine oil being drawn into the engine.
   • An aftermarket performance kit using an external fuel source.
   • If a condition is found 

     Repair as necessary.

   • If a condition is not found 
2. All OK.