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BWD - Just The Facts
Just The Facts
Accelerator Pedal Sensors
Air Charge and Manifold Temperature Sensors
Anti Lock (ABS) Sensors
Anti Lock (ABS) Sensors Testing
Barometric Pressure (BARO) Sensors
Brake Pad Wear Sensors
Camshaft and Crankshaft Position Sensors
Camshaft Synchronizer Assemblies
Coolant Temperature Sensors
Daytime Running Light Kits
DIS Control Modules
Don't Get PO'ed with PO401 Codes
EGR Position and EGR Pressure Sensors
Fuel Injectors
Ignition Coil on Plug (COP)
Knock (Detonation) Sensors
MAF (Mass Air Flow) Sensors
MAP (Manifold Absolute Pressure) Sensors
Oxygen (O2) Sensors
Throttle Position Sensors
Tire Pressure Monitoring (TPMS) Sensors
Two or Four, That is the Question
Vehicle Speed Sensors
Vehicle Warning Lights
Water Intrusion and Premature Coil Failure (UF303)
Air Charge/Manifold Temperature Sensors

Air Charge/Manifold Temperature Sensors
What does an Air Charge/Manifold Temperature do?
The Air Charge/Manifold Temperature sensor is used by the computer to measure air density for fuel mixture control. The computer uses this information to trim the air/fuel ratio according to the air density.

Where are these sensors located?
They are located either in the intake air tubing or intake manifold and may be incorporated into the MAF sensor.

Will a malfunctioning Air Charge/Manifold Temperature Sensor illuminate the check engine light or affect vehicle operation?
Yes, a failing sensor can illuminate the MIL, and may cause the engine to run rich or lean as a result of a failed sensor and may idle poorly especially when cold.

What are the common causes of failure?
Typically these sensors fail due to exposure to the under hood heat from engine operation. Collecting debris on the sensor element may also cause it to operate improperly.

How to determine if these sensors are malfunctioning.
A DTC will be set if an abnormal reading occurs, P0112 low input or P0113 for a high input. The air charge/manifold sensor temperature reading should closely match the engine coolant temperature reading on a scan tool if the engine has not been run for over an hour. The sensor circuit can be checked for proper voltage using a voltmeter.

What makes BWD Air Temp Sensors the best.
  • As a basic manufacturer, BWD has complete control of the manufacturing process from componentry to finished product
  • Temperature sensor design specifies tight tolerance thermistor response values to assure accuracy of the temperature measurement and proper part operation
  • All Air Charge and Manifold Temperature sensors are 100% factory tested to ensure trouble-free performance

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