Idle Speed & Ignition Timing

Ensure idle speed and ignition timing are set to specification. Improper setting of ignition timing and idle speed may cause driveability problems and/or false setting of trouble codes. For adjustment procedures, see ADJUSTMENTS article.

IDLE SPEED & CO LEVEL

Application

⁽¹⁾ Idle RPM

⁽²⁾ Idle RPM

⁽³⁾ CO Level

A/T

Non-Turbo

⁽⁴⁾ 720-820

⁽⁴⁾ 720

.2-8.0%

Turbo

⁽⁴⁾ 700-800

⁽⁴⁾ 700

.2-8.0%

M/T

600-700

650

.2-8.0%

⁽¹⁾	With Auxiliary Air Control (AAC) valve connected.

⁽²⁾	With Auxiliary Air Control (AAC) valve disconnected.

⁽³⁾	Measured in Self-Diagnostic Mode II.

⁽⁴⁾	Automatic transmission/transaxle in Neutral.

IGNITION TIMING (Degrees BTDC @ RPM)

Application

Man. Trans.

⁽¹⁾ Auto. Trans.

Non-Turbo

8-12 @ 650-750

8-12 @ 720-820

Turbo

13-17 @ 650-750

13-17 @ 700-800

⁽¹⁾	Automatic transmission/transaxle in Neutral.