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Home >> Volvo >> 2009 >> V50 Base, 2.4 39 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Ignition And Engine Control Systems - Specifications, Other >> Vehicle Communication Information, Engine Control Module (ECM) (B5254T3; 2005-2007, B5254T7; 2008-2011) >> Description Of Parameters >> Parameters, Value >> Ignition Advance (°BTDC)

Ignition Advance (°BTDC)

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

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

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