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Home >> Pontiac >> 2001 >> Sunfire L4-2.2L VIN 4 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> - Standard Model (Non-Alternative Fuels) >> Scan Tool Diagnostics >> Scan Tool Data Definitions >> Spark
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Spark

RANGE -64 to +64 degrees
This is a display of the spark advance (IC) calculation which the PCM is programming in the ignition system. The desired spark advance is computed using data such as engine temperature, RPM, engine load, vehicle speed and operating mode.
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