Ignition Timing: Diamante

Connect scan tool to OBD-II Data Link Connector (DLC) located below instrument panel, to right of steering column. See Figure. Install timing light. Start and warm engine until engine coolant temperature is 176-203°F (80-95°C). Turn lights and accessories off. Put automatic transmission in Park or manual transmission in Neutral. Insert a paper clip into No. 3 terminal of 3 pin connector as illustrated. See Fig 1. Connect a primary voltage type tachometer to paper clip.
Allow engine to idle. Check and ensure engine curb idle speed is within specifications for timing check. Read base ignition timing value. See IGNITION TIMING SPECIFICATIONS (Degrees BTDC @ RPM) table.

CAUTION: MFI system actuator test must be cancelled after basic ignition timing check or test will continue to run for 27 minutes. Driving vehicle under this condition may damage engine.

Using scan tool, select MFI SYSTEM ACTUATOR TEST, then select item No. 17 (BASIC IGNITION TIMING). Press "Y" key and check basic ignition timing. If basic ignition timing is within specification, go to next step. If basic ignition timing is not within specification, cancel MFI system actuator test and check for DTCs. See appropriate SELF-DIAGNOSTICS article. Check timing belt cover and Crankshaft Position (CKP) sensor installation. Check CKP sensor sensing blade condition. Repair as necessary.
Cancel MFI system actuator test. Read actual ignition timing value. See IGNITION TIMING SPECIFICATIONS (Degrees BTDC @ RPM) table.

Fig 1: Connecting Tachometer (Diamante)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

IGNITION TIMING SPECIFICATIONS (Degrees BTDC @ RPM)

Application

Base

Actual

Diamante

2-8 @ About 700

⁽¹⁾⁽⁴⁾ 10 @ About 700

Eclipse

2.4

2-8 @ About 700

⁽¹⁾⁽³⁾ 10 @ About 700

3.0L

2-8 @ About 700

⁽²⁾⁽³⁾ 15 @ About 700

Galant

2.4L

2-8 @ About 700

⁽¹⁾⁽³⁾ 10 @ About 700

3.0L

2-8 @ About 700

⁽¹⁾⁽³⁾ 15 @ About 700

Lancer

2-8 @ About 700

⁽¹⁾⁽³⁾ 8 @ About 700

Montero

2-8 @ About 750

⁽¹⁾⁽³⁾ 10 @ About 750

Montero Sport

2-8 @ About 700

⁽²⁾⁽³⁾ 10 @ About 700

Outlander

3-7 @ About 700

⁽¹⁾⁽³⁾ 10 @ About 700

⁽¹⁾	Timing will be advanced at higher altitudes, 5-10 degrees, depending on altitude.

⁽²⁾	Timing will be advanced at higher altitudes, 5-15 degrees, depending on altitude.

⁽³⁾	Actual ignition timing is approximate and may fluctuate plus or minus 7 degrees.

⁽⁴⁾	Actual ignition timing is approximate and may fluctuate plus or minus 8 degrees.