Inspection Procedure

HINT:

Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0101) 
   1. Connect the intelligent tester to the DLC3.
   2. Turn the engine switch on (IG).
   3. Turn the tester ON.
   4. Enter the following menu: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
   5. Read DTCs.

   Result 

   RESULT REFERENCE
   
   

   Display (DTC Output)	Proceed to
   P0101	A
   P0101 and other DTCs	B

   HINT:

   If any DTCs other than P0101 are output, troubleshoot those DTCs first.

   B:  GO TO DTC CHART

   A: Go to next step 

2. CHECK AIR INDUCTION SYSTEM 
   1. Check the air induction system for vacuum leakage.

      OK: 

      No leakage from air induction system. 

   NG: REPAIR OR REPLACE AIR INDUCTION SYSTEM 

   OK: Go to next step 

3. CHECK VENTILATION HOSE CONNECTIONS 

   OK: 

   PCV hose is connected correctly and is not damaged. 

   NG: REPLACE VENTILATION HOSE 

   OK: REPLACE MASS AIR FLOW METER