What wire color and circuit number feeds the ignition coil in this diagram?

Circuit 11, dark green/yellow (DG/Y), runs through the ignition suppression resistor to the ignition coil.

Which circuit is used for the timing test lead?

Circuit 324, yellow/light green (Y/LG), which passes through connector C113 and the timing test lead to the TFI ignition module.

Which engines does this start/ignition diagram cover?

The diagram is labeled for 5.0L and 5.8L engines.

Home/ Registry/ Ford/ Bronco/ 1987-1991/ “Eddie Bauer”/ Photo supermotors.net/registry/media/897589

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

Ford 5.0L/5.8L start/ignition wiring diagram, TFI module, EEC power relay, page 20-4

‹ ›

Ford 5.0L/5.8L Start/Ignition schematic (page 20-4): EEC control, TFI ignition module and shield, timing test lead, ignition coil and radio suppression circuits with wire codes (R/LG, BK/O, DG/Y).

AI caption November 2011 · Photo 915 of 1799

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.

Is this accurate? Sign in to help verify it.

Frequently asked questions

What wire color and circuit number feeds the ignition coil in this diagram?: Circuit 11, dark green/yellow (DG/Y), runs through the ignition suppression resistor to the ignition coil.
What is the part number of the ignition suppression resistor?: E9DB-14A601-FA.
Which circuit supplies power from the EEC power relay to the TFI ignition module?: Circuit 16, red/light green (R/LG), from the EEC power relay (page 24-1) through splices S126 and S123 and connector C113.
Which circuit is used for the timing test lead?: Circuit 324, yellow/light green (Y/LG), which passes through connector C113 and the timing test lead to the TFI ignition module.
Which engines does this start/ignition diagram cover?: The diagram is labeled for 5.0L and 5.8L engines.