Ford Ranger Automotive Sensors Location

Source:

https://erwinsalarda.com/ford-ranger-4wd-v6-4-0l-complete-list-of-sensors-location/

List of Common automotive Sensors

The electronic engine controls consist of the following:

- PCM
- Throttle Position (TP) sensor
- Idle Air Control (IAC) valve
- Engine Coolant Temperature (ECT) sensor (4.0L)
- Camshaft Position (CMP) sensor
- Crankshaft Position (CKP) sensor
- Mass Air Flow (MAF) sensor
- Manifold Absolute Pressure (MAP) sensor (2.3L)
- Intake Air Temperature (IAT) sensor
- Heated Oxygen Sensor (HO2S)
- Catalyst Monitor Sensor (CMS)
- Wheel speed sensor
- Cylinder Head Temperature (CHT) sensor (2.3L)

The PCM: - accepts input from various engine sensors to compute the fuel flow rate necessary to maintain a prescribed air/fuel ratio throughout the entire engine operating range. - outputs a command to the fuel injectors to meter the appropriate quantity of fuel. The TP sensor: - sends the PCM a signal indicating the throttle plate angle. - is the main input to the PCM from the driver. The IAC valve: - controls bypass air around the throttle plate at low speeds. - is controlled by the PCM. The ECT sensor (4.0L): - sends the PCM a signal indicating engine coolant temperature. - resistance decreases as coolant temperature increases. The CHT sensor (2.3L): - sends the PCM a signal indicating cylinder head temperature. The CMP sensor: - provides camshaft position information which is used by the PCM for fuel synchronization. The CKP sensor: - sends the PCM a signal indicating crankshaft position. - is essential for calculating spark timing. The MAF sensor: - uses a hot wire sensing element to measure the amount of air entering the engine. - sends the PCM a signal to determine the intake air mass. The PCM will then calculate the required fuel injector pulse width in order to provide the desired air/fuel ratio. The MAP sensor: - measures manifold vacuum and converts it to an electrical signal. This provides the PCM information on engine load. The IAT sensor (4.0L): - sends the PCM a signal indicating the temperature of the air entering the engine. - resistance decreases as temperature increases. The HO2S: - has the ability to create a voltage signal dependent on exhaust oxygen content. - provides feedback information to the PCM used to calculate fuel delivery. The CMS: - has the ability to create a voltage signal dependent on exhaust oxygen content. - provides feedback information to the PCM used to calculate fuel delivery. The wheel speed sensor: - sends a signal to the PCM indicating wheel speed.