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Home >> Cadillac >> 1993 >> Seville Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Pcm >> Diagnostic Parameters >> Pcm Specific Data Codes >> PD08: Spark Advance

PD08: Spark Advance

Displayed in degrees BTDC as generated by ignition control signal from PCM. Range of display is zero to 52 degrees. If base timing is properly adjusted (10 degrees BTDC), readings from a timing light or meter should agree.