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Home >> Mitsubishi >> 2003 >> Lancer Evolution >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures >> Idle Speed & Ignition Timing >> Ignition Timing Check >> Eclipse, Eclipse Spyder & Galant
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Eclipse, Eclipse Spyder & Galant

  1. Before inspection, make sure the vehicle meets the following criteria:
    • Engine coolant temperature: 176-203°F (80-95°C).
    • Lights and all accessories: OFF.
    • Transaxle: Neutral ("P" range on vehicles with A/T).
  2. Connect Scan Tool (MB991502) to the data link connector.
  3. Set up a timing light.
  4. Start the engine and run it at idle.
  5. Check that the idle speed approximately matches the speed specified in IDLE SPEED SPECIFICATIONS  table.
  6. Select scan tool actuator test "item No. 17".
  7. Check that basic ignition timing is within the standard value. See IGNITION TIMING SPECIFICATIONS  table.
  8. If the basic ignition timing is not within the standard value, check the following items:
    • Diagnosis output.
    • Timing belt cover and crankshaft position sensor installation conditions.
    • Crankshaft sensing blade condition.
    CAUTION: If the actuator test is not cancelled, the forced drive will continue for 27 minutes. Driving in this state could lead to engine failure.
  9. Press the clear key on the scan tool (select forced drive stop mode), and cancel the actuator test.
  10. Check that the actual ignition timing is at the standard value. See IGNITION TIMING SPECIFICATIONS .
    NOTE: Ignition timing fluctuates about plus or minus 7° Before Top Dead Center, even under normal operating conditions.
    NOTE: It is automatically further advanced by about 5-10° (3.0L, 3.5L: 5-15°) Before Top Dead Center at higher altitudes.
IDLE SPEED SPECIFICATIONS

Application RPM
Diamante, Eclipse, Eclipse Spyder, Galant, Lancer, Montero Sport & Outlander 700
Lancer Evolution VIII 850
Montero 750
IGNITION TIMING SPECIFICATIONS

Ignition Timing Basic Actual
Diamante, Montero & Montero Sport 5° BTDC +/- 3° 10° BTDC
Eclipse, Eclipse Spyder & Galant
2.4L 5° BTDC +/- 3° 10° BTDC
3.0L 5° BTDC +/- 3° 15° BTDC
Lancer 5° BTDC +/- 3° 8° BTDC
Lancer Evolution VIII 5° BTDC +/- 3° 5° BTDC
Outlander 5° BTDC +/- 2° 10° BTDC