2.5 Ignition system

Components and functions of the ignition system:

• GT3-specific surface-gap spark plug with four ground electrodes • Individual ignition coils with integrated driver (same as those used on the current 911 Carrera (991) models)

1 - Ignition coil 2 - Spark plug

1 - Hall-effect sensor, intake camshaft 2 - Spark-plug hole, cylinder 2 3 - Hall-effect sensor, exhaust camshaft

Ignition coil with spark plug 02_16_14

Hall-effect sensors, spark-plug holes 02_18_14 DME Engine electronics 2

The safety instructions and vehicle-specific specifications in the PIWIS information system must be observed when working on the ignition system.

The engine-specific maintenance intervals for the spark plugs can be found in the maintenance schedules in the PIWIS information system.

Spark plug 02_17_14

DME Engine electronics 2

Given that the GT3 can adjust both the intake camshaft as well as the exhaust camshaft variably via VarioCam, a Hall-effect sensor is required for each intake and exhaust camshaft. The type of Hall-effect sensors used is the same as the sensors used in the current 911 Carrera (991) model line.

Knock control

The GT3 uses two knock sensors for knock control, similar to the 911 Carrera (991).

1 - Oil pressure and oil temperature sensor 2 - Oil level sensor (at oil tank) 3 - Fuel injector for cylinder 6 4 - Knock sensor (bank 2)

02_19_14