The IAT sensor measures the temperature of the intake nmanifold. The ECM uses this sensor reading to set injection timing and adjust the air-fuel ratio. If the fuel mileage and power output of you engine seem low, some owners have found improvement in EGT, fuel economy, and power after cleaning carbon from the IAT sensor in at the rear of the intage manifold. Engine with exhaust brakes are particularly prone to IAT sensor fouling because soot is blown back into the intake during valve overlap.
The only tool you need is a 3/8" ratchet with a 6" extension and 13/16" socket. View of IAT from above battery Closer view of the IAT sensor The IAT sensor is found on the driver's side of the engine, almost at the back of the intake manifold. Unplug the electrical connector from the sensor. You will need to spread the connect tab away from the sensor body to unplug the sensor. After the connector has been removed, use a 13/16" deep well socket, 6" extension, and ratchet to unscrew the sensor from the manifold. Photo of a dirty IAT sensor The sensor on the left had 20,000 miles on it, and it was covered with soot. After a shot of carburator cleaner, you can see the sensor element inside the cage. Screw the clean IAT sensor back into the manifold, torque it to 10 ft-lb, and reattach the connector. Photo of a clean IAT sensor
Normal IAT Sensor resistance values:
Temperature Resistance 30� 40K 32� 30k to 36k ohms 76� 13K ohms 77� 9k to 11k ohms 81� 6.87K ohms 122� 3k to 4k ohms 130� 4K ohms 167 600 to 675 ohms 212 600 to 675 ohms
Replacement Sensor:
Cummins PN 3408345, around $28.
Dodge PN 05014197AA Sensor, Temperature (SEN, TEM), around $18.
iat sensor on a 97 blazer and what does it do
The 2003 Forrester IAT sensor can be found on the top of the transmission. The IAT sensor will be near the back of the transmission.
code113 for iat sensor
where is the IAT Sensor on tne 2002 maxima
A 95 did not have IAT sensor
iat sensor? Please describe this device, never heard of iat sensor. Post again
Most of the IAT sensors are part of the MAF sensor it is a dual sensor
The IAT sensor is an integral part of the MAF sensor
The 1990 Geo Tracker IAT sensor is located on the top of the transmission. The IAT sensor will be near the back of the transmission.
The 2000 Mazda IAT sensor can be found on the back of the engine. The IAT sensor will be just above the bell housing.
The IAT sensor is located in the intake manifold
iat sensor murano