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Home >> Volvo >> 2008 >> C70 Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Tank System And Engine Control Module (ECM) - General Diagnostics Information >> Vehicle Communication Information, Engine Control Module (ECM) >> Description Of Parameters >> Parameters, Value >> Ignition Advance (°BTDC)

Ignition Advance (°BTDC)

Measurement range -96 to +95.3° before top dead center (BTDC).

The value is calculated from the engine speed (RPM) sensor signal.

The value when idling varies depending on the engine coolant temperature (ECT).