What wire colors feed fuel injectors #5 through #8?

All four injectors receive power on wire 361 (R, red) from splice S117. The PCM-side driver wires are: injector #5 — 559 T/BK, injector #6 — 560 LG/O, injector #7 — 561 T/R, injector #8 — 562 LB.

How does a fuel injector work according to this diagram?

Per the note on the diagram: when the solenoid coil is energized (pulsed), fuel passes through the fuel injector and into the engine. The longer the pulse, the greater the amount of fuel that passes through the injector.

What circuits branch off splice S255 on the 70 LB/W wire?

The 70 LB/W (12V start or run) wire from the Generic Electronic Module (GEM) branches at S255 to the anti-lock brakes (page 42-3), remote control alarm and lock system (page 117-1), and air bags (page 46-2).

What wires go to the fuel tank pressure transducer?

The pressure transducer in the fuel tank assembly connects through C311F/C311M using wire 791 R/PK (signal, through C141 to the PCM), 351 BR/W (through C213, C147, and C115 from S148), and 359 GY/R (to C213, page 25-2).

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Ford Wiring Diagram - Fuel Injectors 5-8, PCM, DLC & Fuel Tank Pressure Sensor

Fuel injector and data link connector wiring diagram with color-coded circuits

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Wiring diagram of fuel injectors 5-8, data link connector and fuel tank pressure transducer circuits to the PCM with color codes.

AI caption March 2015 · Photo 70 of 343

This is one page (E3) of a multi-page Ford factory-style wiring diagram set covering the engine control / fuel injection system. It shows fuel injectors #5 through #8, each fed by wire 361 (Red) from splice S117 (sourced from S167), with individual injector driver wires returning to the Powertrain Control Module (PCM): 559 T/BK, 560 LG/O, 561 T/R, and 562 LB, through connectors C160, C158, C107, and C108. The diagram also documents the Data Link Connector (DLC) circuits — 914 T/O and 915 PK/LB data lines shared with the Electronic Automatic Temperature Control (EATC), fused 12V feed 693 O from a 10A interior fuse-panel fuse, and grounds 57 BK / 570 BK/W to G100 and G101. A Generic Electronic Module (GEM) 12V start/run feed (70 LB/W) branches at splice S255 to the anti-lock brakes, remote control alarm/lock system, and air bags. The right side shows the fuel tank assembly pressure transducer circuits: 791 R/PK, 351 BR/W, and 359 GY/R routed through connectors C311, C141, C213, C147, and C115. Cross-references to other diagram pages (instrument cluster, turn/stop/hazard lamps, grounds) are included, letting a reader trace injector, DLC, and fuel-tank pressure sensor wiring by color and connector.

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Frequently asked questions

What wire colors feed fuel injectors #5 through #8?: All four injectors receive power on wire 361 (R, red) from splice S117. The PCM-side driver wires are: injector #5 — 559 T/BK, injector #6 — 560 LG/O, injector #7 — 561 T/R, injector #8 — 562 LB.
How does a fuel injector work according to this diagram?: Per the note on the diagram: when the solenoid coil is energized (pulsed), fuel passes through the fuel injector and into the engine. The longer the pulse, the greater the amount of fuel that passes through the injector.
What wires connect the PCM to the Data Link Connector (DLC)?: Data lines 914 T/O and 915 PK/LB run from the PCM through connectors C147 and splices S208/S205 to the DLC, and also feed the Electronic Automatic Temperature Control (EATC, page 55-1). The DLC also has a fused feed 693 O (10A fuse in the interior fuse panel) and grounds 57 BK / 570 BK/W to G100 and G101.
What circuits branch off splice S255 on the 70 LB/W wire?: The 70 LB/W (12V start or run) wire from the Generic Electronic Module (GEM) branches at S255 to the anti-lock brakes (page 42-3), remote control alarm and lock system (page 117-1), and air bags (page 46-2).
What wires go to the fuel tank pressure transducer?: The pressure transducer in the fuel tank assembly connects through C311F/C311M using wire 791 R/PK (signal, through C141 to the PCM), 351 BR/W (through C213, C147, and C115 from S148), and 359 GY/R (to C213, page 25-2).