Inspection Procedure

HINT:

Read freeze frame data using the Techstream. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, 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 OTHER DTC OUTPUT (IN ADDITION TO DTC P0101) 
   1. Connect the Techstream to the DLC3.
   2. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
   3. Read the DTCs.

      Result 

      RESULT CHART
      
      

      Display (DTC output)	Proceed to
      P0101 and other codes are output	A
      Only P0101 Is output	B

      B: GO TO RELEVANT 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: 

   Ventilation hose is connected correctly and is not damaged. 

   NG: REPAIR OR REPLACE VENTILATION HOSE 

   OK: REPLACE MASS AIR FLOW METER