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Home >> Hyundai >> 2009 >> Elantra GLS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures >> DTC P0102 Mass Or Volume Air Flow Circuit Low Input >> Component Inspection

Component Inspection

  1. Engine "ON"
  2. Install Scantool and monitor the "MASS AIR FLOW" parameter on the Scantool data list.

    SPECIFICATION: 

    DTC P0102 SPECIFICATION TABLE

    Test Condition MAFS (V)
    Normal value with ignition "ON" & Engine "OFF" Approx. 0.1
    Normal value with idle after warm up Approx. 0.9~1.3
    2000RPM without load Approx.1.6~2.0
    Normal value with accelerating and decelerating after starting The MAFS and TPS signals increase at the same time with accelerating and decrease with releasing accelerator pedal
  3. Is MAF sensor voltage near the specified value?

    YES 

    • Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure

    NO 

    • Check MAF for contamination, deterioration, or damage. Substitute with a known-good MAF and check for proper operation. If the problem is corrected, replace MAF and then go to "VERIFICATION OF VEHICLE REPAIR " procedure
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