Ignition Timing

IGNITION TIMING (Degrees BTDC @ RPM) ⁽¹⁾

Application

Specification

Manual Transmission

⁽²⁾ 4-6 @ 750-850

Automatic Transmission

⁽²⁾ 4-6 @ 750-850

⁽¹⁾	See Fig 1 for timing mark location.

⁽²⁾	With jumper wire installed between terminals No. 4 (Black wire) and No. 5 (Blue/Red wire) of test connector (White) located next to left strut tower.

NOTE: Ensure ignition timing advances as engine speed increases.

Fig 1: Locating Ignition Timing Mark (Typical)

Courtesy of GENERAL MOTORS CORP.