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Ford 5.0L E4OD/4R70W Fuel Injector Wiring Diagram - PCM Pins & Wire Colors
Reference · 1992-1996 BroncoAll 411 wiring diagrams
Engine controls wiring diagram for 5.0L with E4OD/4R70W showing eight fuel injector circuits to the powertrain control module.
Part of 1992-1996 Ford Bronco Wiring Diagrams
This is page 24-3 of a Ford wiring diagram set covering Engine Controls for the 5.0L engine with either the E4OD or 4R70W automatic transmission. The diagram shows the fuel injector circuit: switched 12V power (circuit 361, red wire, hot with the relay energized) comes from splice S122 (page 24-1), passes through connector C101, and is distributed via splices S149 and S151 to all eight fuel injectors (#1 through #8, at connectors C190-C197). A note states the injectors are controlled by the PCM, mounted in the intake manifold at each intake port, and meter fuel to the engine. Each injector's low-side control wire (circuits 555-562 with colors T, W, BR/Y, BR/LB, T/BK, LG/O, T/R, LB) passes through C101 to specific pins (58, 59, 39, 35, 15, 12, 13, 14) on the Powertrain Control Module at connector C185. The bottom of the diagram lists nine additional PCM output circuits (pins 38, 52, 51, 55, 49, 53, 30, 32, 41; circuits 925 W/Y, 315 P/O, 237 O/Y, 924 BR/O, 923 O/BK, 480 P/Y, 199 LB/Y, 911 W/LG, 224 T/W) that continue to the E4OD transmission (pages 30-1, 30-2) or 4R70W transmission (pages 29-1, 29-2). Useful for diagnosing injector power, injector driver circuits, and PCM-to-transmission wiring.
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Frequently asked questions
- What wire colors and circuits go to each fuel injector on the 5.0L?
- All injectors get power on circuit 361 (R, 12V with relay energized). Control wires are: #1 555 T, #2 556 W, #3 557 BR/Y, #4 558 BR/LB, #5 559 T/BK, #6 560 LG/O, #7 561 T/R, #8 562 LB.
- Which PCM pins control the fuel injectors?
- At connector C185: pin 58 (injector #1), 59 (#2), 39 (#3), 35 (#4), 15 (#5), 12 (#6), 13 (#7), 14 (#8).
- Where do the fuel injectors get power?
- From circuit 361 (red wire), which comes from splice S122 (page 24-1), passes through connector C101, and is distributed through splices S149 and S151. It is 12V with the relay energized.
- Where are the fuel injectors located according to this diagram?
- A note states they are controlled by the PCM and mounted in the intake manifold at each intake port, where they meter fuel to the engine.
- Which PCM circuits go to the E4OD or 4R70W transmission?
- PCM pins 38 (925 W/Y), 52 (315 P/O), 51 (237 O/Y), 55 (924 BR/O), 49 (923 O/BK), 53 (480 P/Y), 30 (199 LB/Y), 32 (911 W/LG), and 41 (224 T/W), continuing to E4OD pages 30-1/30-2 or 4R70W pages 29-1/29-2.
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