Idle Speed & Ignition Timing

Ensure idle speed and ignition timing are set to specification. See IGNITION TIMING SPECIFICATIONS table. For adjustment procedures, see ON-VEHICLE ADJUSTMENTS article.

IGNITION TIMING SPECIFICATIONS (Degrees BTDC @ RPM)

Application

Base

⁽¹⁾⁽²⁾ Actual

1.5L

2-8@ 600-700

10 @ 600-800

1.8L

2-8 @ 600-800

5 @ 600-800

2.0L

Non-Turbo

⁽³⁾

Turbo

2-8 @ 650-850

8 @ 650-850

2.4L

2-8 @ 650-850

10 @ 650-850

3.0L

2-8 @ 600-800

15 @ 600-800

3.5L

2-8 @ 600-800

15 @ 600-800

⁽¹⁾	Timing will be advanced at higher altitudes, 5-15 degrees, depending on model and altitude.

⁽²⁾	Actual ignition timing is approximate and may fluctuate plus or minus 7 degrees.

⁽³⁾	Ignition timing is NOT adjustable.