April 5, 2026: LEMON Manuals is launched! Read the announcement.

Idle Speed & Ignition Timing

Ensure idle speed and ignition timing are set to specification. For specifications, see IDLE SPEED & IGNITION TIMING SPECIFICATIONS table. For adjustment procedures, see 1989 ON-VEHICLE ADJUSTMENTS - ALLANTE or 1990 ON-VEHICLE ADJUSTMENTS -- ALLANTE article.

IDLE SPEED & IGNITION TIMING SPECIFICATIONS

Application

Specification

Ignition Timing

10 Degrees BTDC

Idle Speed

⁽¹⁾

⁽¹⁾	For vehicles with 0-500 odometer miles, minimum idle rpm specification should be 425-525 rpmFor vehicles with more than 500 odometer miles, minimum idle rpm specification should be 500-600 rpm.