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Home › Volvo › 2000 › S40 › Repair and Diagnosis › Engine Performance › Engine Control Systems › Ignition And Control Systems - Specifications, Electrical/Electronic (644 Body) › Parameter Table. Engine Management System (Ems2000) (B4204T3; 2004) › Description of parameters › Ignition advance

Ignition advance

Measurement range 72° before top dead center (TDC) to 23° after top dead center (TDC).

Normal value when idling is approximately 0-15°.