Contents Section: Ignition System All sections

Ignition System - g2.4 DOHC Hyundai Santa Fe II рестайлинг

Ignition System 11 illustrations ~300 words

Description

Ignition timing is controlled by the electronic control ignition timing system. The standard reference ignition timing data for the engine operating conditions are preprogrammed in the memory of the ECM (Engine Control Module). The engine operating conditions (speed, load, warm-up condition, etc.) are detected by the various sensors. Based on these sensor signals and the ignition timing data, signals to interrupt the primary current are sent to the ECM. The ignition coil is activated, and timing is controlled.

On-vehicle Inspection

Spark Test

Scheme 36

Scheme 36: On-vehicle Inspection

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Scheme 37

Scheme 38

Scheme 38

Scheme 39

Scheme 39
  1. Disconnect the ignition coil connectors (A).
  2. Remove the ignition coils (A).
  3. Using a spark plug socket, remove the spark plug.
  4. Install the spark plug to the ignition coil.
  5. Ground the spark plug to the engine.
  6. Check if spark occurs while engine is being cranked. NOTE: To prevent fuel being injected from injectors while the engine is being cranked, disconnect the injector connector. Crank the engine for no more than 5 ~ 10 seconds.
  7. Inspect all the spark plugs.
  8. Using a spark plug socket, install the spark plug.
  9. Install the ignition coil.
  10. Reconnect the ignition coil connector.

Scheme 40

Scheme 40: Inspect Spark Plug

Scheme 41

Scheme 41

Scheme 42

Scheme 42
  1. Disconnect the ignition connectors (A).
  2. Remove the ignition coils (A).
  3. Using a spark plug socket, remove the spark plug. CAUTION: Be careful that no contaminates enter through the spark plug holes.
  4. Inspect the electrodes (A) and ceramic insulator (B).

Inspection Of Electrodes

ConditionDark depositsWhite deposits
DescriptionFuel mixture too rich Low air intakeFuel mixture too lean Advanced ignition timing Insufficient plug tightening torque

INSPECTION OF ELECTRODES

Scheme 43

Scheme 43
  1. 5. Check the electrode gap (A). Standard Unleaded : 1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.)

Scheme 44

Scheme 44: Inspect Ignition Coil
  1. Measure the primary coil resistance between terminals (+) and (-). Standard value: 0.62ohms ± 10%

Scheme 45

Scheme 45: Removal and Installation

Scheme 46

Scheme 46
  1. Disconnect the ignition coil connectors (A).
  2. Remove the ignition coils (A).
  3. Installation is the reverse of removal.