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.
BELOW ARE PICTURES OF SENSORS AND COMPONENT LOCATION[
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