LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Porsche >> 1994 >> 911 Turbo >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Idle Speed & Ignition Timing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Idle Speed & Ignition Timing

Ensure idle speed and ignition timing are set to specification. Idle speed and ignition timing are controlled by Digital Motor Electronics (DME) engine management system and are not adjustable. Values given in IGNITION TIMING SPECIFICATIONS  and IDLE SPEED SPECIFICATIONS  are for verification purpose only.

IGNITION TIMING SPECIFICATIONS

Application Degrees @ RPM
All Models TDC +/- 3 @ 840-920
IDLE SPEED SPECIFICATIONS

Application Idle RPM
All Models 840-920