What PCM pins do the 5.0L engine sensors connect to on this diagram?

Knock Sensor to pin 23 (310 Y/R), ECT Sensor to pin 7 (354 LG/R), IAT Sensor to pin 25 (743 GY), TPS to pin 47 (355 GY/W), and EVP Sensor to pin 27 (352 BR/LG). Pin 24 (330 Y/LG) is marked NOT USED.

What wire color is the sensor signal return circuit shared by these sensors?

Circuit 359 GY/R (gray/red), which runs through splice S161 to the knock, ECT, IAT, TPS, and EVP sensors.

How does the Throttle Position Sensor (TPS) work according to this diagram?

It is a potentiometer with a DC output that varies with throttle plate angle. By monitoring TP Sensor output, the PCM calculates fuel delivery requirements based on driver demand.

What is the wiring for the EGR Valve Position (EVP) sensor?

The EVP sensor (connector C182) uses circuit 351 BR/W through splice S135 and connector C101, and circuit 352 BR/LG through C101 to PCM pin 27 at connector C185.

What do the PCM circuits at the bottom of the diagram connect to?

Circuits 382 Y/BK (pin 4), 259 O/R (pin 16), 929 PK, and 395 GY/O (pin 56, C185) go to the Ignition System, shown on Page 21-1.

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Ford 5.0L Engine Controls Wiring Diagram 24-5 - ECT, IAT, TPS, EVP, Knock Sensor

Ford 24-5 Engine Controls 5.0L wiring diagram with knock, ECT, IAT, TPS and EGR valve position sensors

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Engine controls wiring diagram for 5.0L showing knock sensor, coolant and intake air temperature, throttle position and EGR valve position sensor circuits.

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This document is page 24-5 of a Ford wiring diagram set covering Engine Controls for the 5.0L engine. It shows the sensor wiring circuits connected to the Powertrain Control Module (PCM, connector C185): the Knock Sensor (KS, C1009), Engine Coolant Temperature (ECT) Sensor (C183), Intake Air Temperature (IAT) Sensor (C164), Throttle Position Sensor (TPS, C1024), and EGR Valve Position (EVP) Sensor (C182). A shared signal return circuit 359 GY/R runs through splice S161 to all sensors, with branch options noted for vehicles with or without the E4OD or 4R70W transmission. Signal wires include 310 Y/R (knock), 354 LG/R (ECT), 743 GY (IAT), 355 GY/W (TPS), and 351 BR/W / 352 BR/LG (EVP), routing through connectors C101 and splice S135 to PCM pins 23, 7, 25, 47, and 27. Circuit 330 Y/LG at pin 24 is marked NOT USED. Lower PCM circuits 382 Y/BK, 259 O/R, 929 PK, and 395 GY/O connect to the ignition system, referenced to Page 21-1. Text callouts explain each sensor's operating principle: thermistors for ECT and IAT, a potentiometer for TPS, knock detection, and EGR position feedback.

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Frequently asked questions

What PCM pins do the 5.0L engine sensors connect to on this diagram?: Knock Sensor to pin 23 (310 Y/R), ECT Sensor to pin 7 (354 LG/R), IAT Sensor to pin 25 (743 GY), TPS to pin 47 (355 GY/W), and EVP Sensor to pin 27 (352 BR/LG). Pin 24 (330 Y/LG) is marked NOT USED.
What wire color is the sensor signal return circuit shared by these sensors?: Circuit 359 GY/R (gray/red), which runs through splice S161 to the knock, ECT, IAT, TPS, and EVP sensors.
How does the Throttle Position Sensor (TPS) work according to this diagram?: It is a potentiometer with a DC output that varies with throttle plate angle. By monitoring TP Sensor output, the PCM calculates fuel delivery requirements based on driver demand.
What is the wiring for the EGR Valve Position (EVP) sensor?: The EVP sensor (connector C182) uses circuit 351 BR/W through splice S135 and connector C101, and circuit 352 BR/LG through C101 to PCM pin 27 at connector C185.
What do the PCM circuits at the bottom of the diagram connect to?: Circuits 382 Y/BK (pin 4), 259 O/R (pin 16), 929 PK, and 395 GY/O (pin 56, C185) go to the Ignition System, shown on Page 21-1.