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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 42 (Engine Control System Diagnosis - 2.0L (2 Of 3) (Except HEV)) >> DTC P050B: Cold Start Ignition Timing Performance >> Component Inspection

Component Inspection

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

■ Spark Plug Cable & Ignition Coil Inspection 

  1. Visually/physically inspect the spark plug cable and ignition coil related to the misfiring cylinder(s) for the following conditions
    • Damage, cracks, carbon and flashover
    • Poor connection or damaged harness
    • Connected to the incorrect cylinders at the ignition coil and spark plug
  2. Measure the resistance of the spark plug cable related to the misfiring cylinder(s)

    Specification:  5.6 kΩ/m ± 20%

  3. Measure the resistance of the primary and secondary ignition coil related to the misfiring cylinder(s)

    Specification:  Primary Ignition Coil Resistance: 0.56~0.68 Ω at 20°C (68°F)

    Secondary Ignition Coil Resistance: 6~8 kΩ at 20°C (68°F)

  4. Was a problem found in any of the above areas?

    YES 

    NO 

    • Go to next step below.

■ Spark Plug Inspection 

  1. Visually/physically inspect the spark plug related to the misfiring cylinder(s) for the following conditions
    • Damaged insulation, Worn electrodes, Oil or fuel fouled, Loose terminals and cracks
    • Check for electrode gap: 1.0 - 1.1 mm (0.039 - 0.043 in.)
    • Check if the spark plug for the relevant cylinder is lighter in color than the other plugs
  2. Was a problem found in any of the above areas?

    YES 

    NO 

    • Go to next step below.

■ ETC Inspection 

  1. IG "ON"
  2. Select "Actuation Test" mode and execute 'ETC motor'.

    Specification: 

    Fig 1: Scantool Display - Current Data And Actuation Test
    G11991849Courtesy of HYUNDAI MOTOR AMERICA
    • During 'ETC Motor' test, TPS1 and TPS2 show symmetrical movements.
  3. Is the waveform normal?

    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 

    • Check ETC for contamination, deterioration, or damage. Substitute with a known-good ETC and check for proper operation. If the problem is corrected, replace TPS and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NOTE: It is necessary to perform the TPS adaptation procedure after the ETC assembly or PCM replacing.

■ TPS adaptation procedure


IG "OFF" and then "ON" without cranking. Wait for 10 seconds under enable conditions.
→ Enable conditions: Battery > 10 V & Intake Air Temp. > 5.3°C (41.5°F) & 5.3°C (41.5°F) < Engine Coolant Temp. < 99.8°C (211.6°F)