DTC P0101: Mass or Volume Air Flow Circuit Range / Performance Problem: Procedure

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 and ECT / Trouble Codes.
5. Read DTCs.
   RESULT
   
   

   Result	Proceed to
   P0101 is output	A
   P0101 and other DTCs is are output	B

   HINT: 

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

B → See step   5 

A: Go to next step 

1. Check the air induction system for vacuum leak.

   OK

   No leak from air induction system.

NG → REPAIR OR REPLACE AIR INDUCTION SYSTEM 

OK: Go to next step 

1. Check the PCV hose connections.

   OK

   PCV hose is connected correctly and is not damaged.

NG → REPAIR OR REPLACE PCV HOSE 

OK → See step   4