What circuit powers the fuel injectors and engine control solenoids on the 5.0L?

Circuit 361 (red wire), which is 12V with the relay energized, feeds from splice S122 through connector C101 and splice S149 to the injectors, EGR control solenoid, AIRD/AIRB solenoids, idle air control valve, and canister purge solenoid.

What wire colors and PCM pins control the injectors?

Injector control circuits are 556 (white) to PCM pin 59 via splice S159 and 555 (tan) to PCM pin 58 via splice S160.

Which PCM pin controls the EGR control solenoid?

The EGR control solenoid (connector C180) is controlled by circuit 360 BR/PK to PCM pin 33.

What connector and circuit are used for the idle air control valve?

The idle air control valve uses connector C1007, with power on circuit 361 R and control on circuit 200 BR to PCM pin 11.

What circuit does the canister purge solenoid use?

The canister purge solenoid (connector C171) uses circuit 101 GY/Y to PCM pin 31, with power on circuit 361 R.

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Ford 5.0L Engine Controls Wiring Diagram 24-4 - Injectors, EGR, IAC, PCM Pins

Engine Controls wiring diagram, 5.0L W/O E4OD or 4R70W, page 24-4, fuel injectors and emissions solenoids

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Ford 5.0L engine controls wiring diagram of fuel injectors, EGR, air injection, canister purge and idle air control circuits.

AI caption August 2018 · Photo 368 of 386

This document is page 24-4 of a Ford wiring diagram covering Engine Controls for the 5.0L engine without E4OD and without 4R70W transmissions. It shows the 12V relay-energized power distribution from splice S122 (continued from page 24-1) through connector C101 and splice S149 to the engine control solenoids and fuel injectors. Circuit 361 (red) feeds the EGR Control Solenoid (C180), Secondary Air Injection Diverter (AIRD) Solenoid (C1023), Secondary Air Injection Bypass (AIRB) Solenoid (C1022), Idle Air Control Valve (C1007), Canister Purge Solenoid (C171), fuel injectors #1–#7 (connectors C190–C196), and the fuel injector feed C197 via splice S151. Injector ground-side circuits are 556 (white) through splice S159 and 555 (tan) through splice S160. Control returns to the Powertrain Control Module (PCM) via connector C185: circuit 360 BR/PK to pin 33 (EGR), 190 W/O to pin 51 (AIRB), 200 BR to pin 11 (IAC), 101 GY/Y to pin 31 (canister purge), 264 W/LB to pin 21, 556 W to pin 59, and 555 T to pin 58. A reader can trace injector and emissions solenoid wiring, wire colors, circuit numbers, connector IDs, and PCM pin assignments.

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Frequently asked questions

What circuit powers the fuel injectors and engine control solenoids on the 5.0L?: Circuit 361 (red wire), which is 12V with the relay energized, feeds from splice S122 through connector C101 and splice S149 to the injectors, EGR control solenoid, AIRD/AIRB solenoids, idle air control valve, and canister purge solenoid.
What wire colors and PCM pins control the injectors?: Injector control circuits are 556 (white) to PCM pin 59 via splice S159 and 555 (tan) to PCM pin 58 via splice S160.
Which PCM pin controls the EGR control solenoid?: The EGR control solenoid (connector C180) is controlled by circuit 360 BR/PK to PCM pin 33.
What connector and circuit are used for the idle air control valve?: The idle air control valve uses connector C1007, with power on circuit 361 R and control on circuit 200 BR to PCM pin 11.
What circuit does the canister purge solenoid use?: The canister purge solenoid (connector C171) uses circuit 101 GY/Y to PCM pin 31, with power on circuit 361 R.