Base Ignition Angle¶

Indicates the base ignition angle to be used when the engine is running (in degrees before top dead center). This is copied from the currently-selected Base Ignition Angle Map.

To form the Ignition Angle Request sent to the Ignition Target Demand module, this value is added to two correction values:

• An Engine Coolant Temperature Correction calculated by multiplying Ignition Angle ECT Correction by Ignition Angle ECT Correction Multiplier.
• An Intake Air Temperature Correction calculated by multiplying Ignition Angle IAT Correction by Ignition Angle IAT Correction Multiplier.