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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 32 (Engine Control System Diagnosis - 2.0L (1 Of 3) (Except HEV)) >> DTC P0108: Manifold Absolute Pressure Barometric Pressure Circuit High Input >> Component Inspection

Component Inspection

WARNING: This page is about a different variant/trim than selected.

■ MAPS performance Inspection 

  1. IG "OFF". Connect a GDS and oscilloscope.
  2. Connect CH A probe to signal terminal of TPS and CH B probe to signal terminal of MAPS connector.
  3. Warm up the engine to normal operating temperature.
  4. Measure signal waveform of MAPS and TPS together by actuating the throttle.

    Specification:  Signal waveform will be displayed as follows.

  5. Is the measured signal waveform (Comparison response of TPS with MAPS) O.K?

    YES 

    • Check for poor connection between PCM 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 

    • Substitute with a known - good MAPS and check for proper operation. If the problem is corrected, replace MAPS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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