Circuit/System Description

WARNING: This page is about a different variant/trim than selected.

Compressor Air Intake Turbocharger System Description

Circuit	Description
Signal	The control module input circuit has an internal resistance connected to 5 V.
Low Reference	Grounded through the control module.

Component	Description
B65 Intake Manifold Pressure and Air Temperature Sensor	The assembly has several functions: Pressure The signal voltage increases when the pressure increases. Temperature The temperature sensor is a negative temperature coefficient thermistor, a resistor which changes based on temperature. Low temperature produces a high resistance: 49882 ohms @ -40°C (-40°F) High temperature produces a low resistance: 67 ohms @ 150°C (302°F) The intake air temperature sensor 1 and the intake manifold pressure sensor are integrated in the same housing, which is located behind the throttle body. The sensor measures the temperature and pressure in the intake manifold between the throttle valve and the intake valves.
K20 Engine Control Module	The control module contains a microprocessor used to process input data to control outputs. The control module controls a series of actuators to ensure optimal engine performance. The control module does this by reading values from a variety of sensors, interprets the data and adjusts the engine actuators accordingly.

Component

Description

B65 Intake Manifold Pressure and Air Temperature Sensor

The assembly has several functions:
Pressure
The signal voltage increases when the pressure increases.
Temperature
The temperature sensor is a negative temperature coefficient thermistor, a resistor which changes based on temperature.

Low temperature produces a high resistance: 49882 ohms @ -40°C (-40°F)
High temperature produces a low resistance: 67 ohms @ 150°C (302°F)

The intake air temperature sensor 1 and the intake manifold pressure sensor are integrated in the same housing, which is located behind the throttle body. The sensor measures the temperature and pressure in the intake manifold between the throttle valve and the intake valves.

K20 Engine Control Module

The control module contains a microprocessor used to process input data to control outputs.
The control module controls a series of actuators to ensure optimal engine performance. The control module does this by reading values from a variety of sensors, interprets the data and adjusts the engine actuators accordingly.