Idle Speed & Ignition Timing

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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 tables are for verification purpose only.

IGNITION TIMING SPECIFICATIONS

Application	Degrees @ RPM
911 Carrera & 911 Carrera 4	TDC +/- 3 @ 840-920

IDLE SPEED SPECIFICATIONS

Application	Idle RPM
911 Carrera & 911 Carrera 4	840-920