DTC P0101: Mass Air Flow Circuit Range / Performance Problem: Procedure
- CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P0101)
- Connect the Techstream to the DLC3.
- Enter the following menus: Powertrain / Engine / Trouble Codes.
- Read the DTCs.
Result
Result Proceed to P0101 and other codes are output A Only P0101 is output B
B → See step 5
A: Go to next step
- CHECK AIR INDUCTION SYSTEM
- 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
- Check the air induction system for vacuum leakage.
- CHECK VENTILATION HOSE CONNECTIONS
OK
Ventilation hose is connected correctly and is not damaged.
NG → REPAIR OR REPLACE VENTILATION HOSE
OK → See step 4
- REPLACE MASS AIR FLOW METER. Refer to REMOVAL
- GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART