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Home › Hyundai › 2004 › Elantra GLS, Automatic › Repair and Diagnosis › Engine Performance › Engine Control Systems › Fuel System › DTC Trouble Shooting Procedures › DTC P0101: Mass Air Flow Sensor (MAFS) Range/Performance Problem › Inspection Procedures › 5. Check Air Cleaner

5. Check Air Cleaner

  1. Check air cleaner for dirt, blockage, or damage.

Is air cleaner good? 

Yes: Go to next step.

No: Clean or replace it.

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