Inspection Procedure

HINT:

Read freeze frame data using the hand-held tester or the OBD II scan tool, as freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio was lean or rich, etc. at the time of the malfunction.

1. CHECK OTHER DTC OUTPUT (BESIDES DTC P0101) 
   1. Read the DTC using the hand-held tester or the OBD II scan tool.

      Result: 

      DTC OUTPUT SPECIFICATION
      
      

      Display (DTC output)	Proceed to
      P0101 and other DTCs are output	A
      Only P0101 is output	B

      HINT:

      If any other codes besides P0101 is output, perform the troubleshooting for those DTCs first.

   1. B: REPLACE MASS AIR FLOW METER 
   2. A: GO TO RELEVANT  DIAGNOSTIC TROUBLE CODE TABLE