Displays a 3D table used for setting ignition timing throughout the operating range of your engine.  In Speed/Density mode, this table will appear as “Spark Advance vs. RPM & MAP” and will appear as Spark Advance vs. RPM & TPS” in Alpha-N mode.

While online with the ECU, there should be a sensor in the dashboard on the spark table screen called Spark (BTDC).  This value reflects not only the value derived from the cells in the spark table itself, but also from any changes to the ignition timing from an active knock sensor input or from timing trim.  If the value in this sensor doesn't seem to line up with the values being used in the spark table, the difference is most likely caused by one of the following:

• The engine is idling and is off of the target idle speed, causing the ECU to use timing trim to attempt to correct the idle speed.
• The knock sensor is active.
• The crank reference angle is incorrect for the application and the ECU will not allow the timing value specified in the table.