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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 carburetor 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.
What else can I help you with?
Where is the IAT sensor located on 1995 Chevy G20?
A 95 did not have IAT sensor
Where is IAT sensor on a 2004 Dodge Dakota?
The IAT sensor is located in the intake manifold
Where is the IAT sensor located on a 1989 Nissan 240sx?
The IAT sensor is located on the air box. Team Clockwork Performance
Where is my iat sensor located on my 2006 kia Rio?
iat sensor? Please describe this device, never heard of iat sensor. Post again
Where is iat sensor on 1999 infiniti QX4?
where is the IAT sensor located on 99 qx4 infiniti
Where is the iat sensor located on1999honda accode?
It doesn't have an intake air temperature (IAT) sensor.
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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.
Where is the IAT sensor located on a 2003 Mitsubishi outlander?
The IAT sensor, on your 2003 Mitsubishi outlander, is located behind the dashboard. The sensor is on the drivers side of the vehicle.
Where is the IAT sensor located on a 2001 Oldsmobile aurora?
I need to locate the IAT sensor on my 2001 Aurora
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On a 1998 Cavalier, the IAT sensor is located in the hose connecting the air cleaner to the throttle body. The IAT is a two-wire sensor.
Where is the IAT Sensor located in 2002 Saturn SL?
The 2002 Saturn IAT sensor can be found on the top of the engine. The IAT sensor will be near the injector fuel pump.
Where is the iat sensor on a 2005 mustang gt?
The IAT sensor is located is an intergral part of the the Mass Air Flow (MAF) sensor
