Ford 5.0L & 5.8L TFI Start/Ignition Wiring Diagram - EEC Module & Coil (20-4)

This is a scanned page (20-4, "START/IGNITION") from a Ford factory wiring diagram manual covering the start/ignition circuit for 5.0L and 5.8L engines with the TFI (Thick Film Ignition) system. The diagram shows the Electronic Engine Control (EEC) module (referenced to page 24-1) connected through shielded wiring to the TFI ignition module mounted on the distributor. Key circuits include circuit 48 (with TFI ignition module shields at splices S108 and S109), circuit 398 (DB), circuit 259 (BK/O), circuit 324 (Y/LG) which runs through the timing test lead, circuit 11 (DG/Y) feeding the ignition coil through an ignition suppression resistor (part number E9DB-14A601-FA), and circuit 16 (R/LG) from the EEC power relay (page 24-1) through splices S126 and S123 to the TFI module and radio capacitor. Connectors shown include C113, C202, C250, C106, and C118, with feeds from connector C202 and splice S214 on pages 20-1/20-2 and a link to the instrument cluster (page 60-1). A reader can trace each ignition circuit number, wire color, connector, splice, and ground (G104) for diagnosing no-start or ignition faults on these V8 engines.