Things to be Aware of the Intake Air Temperature Sensor

1
Things to be Aware of the Intake Air Temperature
Sensor
2
The Intake Air Temperature sensor is usually
mounted in the intake manifold so the tip will be
exposed to air entering the engine.
3
An IAT sensor is an important component that is
needed while starting up a vehicle's engine.
4
A faulty sensor can decrease the life of the
engine and reduce the efficiency of fuel
consumption.
5
Functions of an IAT sensor
6
An intake air temperature sensor is an essential
component of an engine, which ensures that the
car starts smoothly.
7
It also looks after the fuel-to-air ratio is
maintained at appropriate levels, for effective
combustion of the fuel when the engine is cold.
8
In some cars, it is used to delay the release of
the exhaust gas re-circulation valve, and
decreases the time taken for the engine to warm
up.
9
What causes a bad IAT sensor
10
The IAT sensor can be damaged by backfiring of
the engine and lose its sensitivity due to
long-term use or high temperature.
11
The sensor can also show faulty readings due to
the accumulation of oil and carbon, wear and tear
over time, and a poor connection after servicing
the air filtering unit.
12
A shorted electrical connection, proximity to
high voltage equipment, and corrosion of electric
connectors, can all reduce or even destroy the
sensor's ability to detect minute changes in air
temperature.
13
Warning signs of a faulty IAT sensor
14
The first warning sign is the occurrence of rough
idling when an engine is cold.
15
There may be also some knocking sound from the
engine while driving at higher speed.
16
The car engine starts to stall at regular
intervals or while accelerating.
17
Also check engine signal on the dashboard lights
up with the error code for a malfunctioning sensor
18
Testing an IAT circuit malfunction
19
It is important to check out the various warning
signs and conduct tests to identify a
malfunctioning air temperature sensor.
20
Disconnect the MAF connector and switch the
multimeter to Volt Direct Current mode while
connecting the red multimeter lead to wire B and
the black lead to wire A.
21
With your engine running, the multimeter should
show a reading of 4.5 - 5 volts and if this does
not happen, the IAT circuit is malfunctioning.
22
https//www.autobahnautomotive.com/
https//www.facebook.com/Autobahn-Automotive-Servi
ce-1231233380337997/ https//twitter.com/Autobahn
AutoTX https//plus.google.com/110440508969834276
729
Thank You!