This module introduces Ford post-Dura Spark 2 ignition systems, focusing on TFI-4 scope testing. Tom covers the key differences between push start and computer-controlled dwell (CCD) systems, including open and closed bowl mounting configurations.

Topics include:

• Identifying push start vs. CCD modules and avoiding common misapplication errors
• Profile Ignition Pickup (PIP) signal characteristics, including signature PIP for fuel injection sync
• Spark Output (SPOUT) signal behavior and its role in timing control
• How the ICM controls dwell and coil firing in each system type
• Action/reaction testing methodology for evaluating module response to SPOUT commands
• PIP and SPOUT signal interaction within the module and its effect on waveform shape