Idle Speed & Ignition Timing

Ensure idle speed and base ignition timing are set to specification. See IDLE SPEED SPECIFICATIONS and IGNITION TIMING tables. If necessary, see the ADJUSTMENTS article.

IDLE SPEED SPECIFICATIONS ⁽¹⁾

Application

Idle RPM

With A/C Off

Auto. Transaxle

750-850

Man. Transaxle

700-800

With A/C On

⁽²⁾ 850-950

⁽¹⁾	Transaxle or transmission in Neutral or Park.

⁽²⁾	With auto. transmission in gear, idle RPM is 750-850.

IGNITION TIMING - (Degrees BTDC @ RPM) ⁽¹⁾

Application

Man. Trans.

Auto. Trans.

Esteem

⁽²⁾ 4-6 @ 700-800

⁽²⁾ 4-6 @ 750-850

⁽¹⁾	See Fig 1 for timing mark location.

⁽²⁾	With jumper wire installed between "D" and "E" terminals of test connector, near ignition coil.

Fig 1: Locating Ignition Timing Mark (Typical)

Courtesy of GENERAL MOTORS CORP.