Inspection Procedure

HINT:

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. 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 Techstream to the DLC3.
   2. Turn the ignition switch to ON.
   3. Turn the Techstream on.
   4. Enter the following menus: Powertrain/Engine/Trouble Codes.
   5. Read the DTCs.

      Result 

      RESULT CHART
      
      

      Result	Proceed to
      DTC P0101 is output	A
      DTC P0101 and other DTCs are output	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 INTAKE SYSTEM 
   1. Check the intake system for vacuum leakage (See ON-VEHICLE INSPECTION ).

      OK: 

      No leakage from intake system. 

      NG: REPAIR OR REPLACE INTAKE SYSTEM 

      OK: Go to next step 

3. CHECK PCV HOSE CONNECTIONS 
   1. Check the PCV hose connections.

      OK: 

      PCV hose is connected correctly and is not damaged. 

      NG: REPAIR OR REPLACE PCV HOSE 

      OK: REPLACE MASS AIR FLOW METER  (See REMOVAL )