IAT1 SENSOR location and problems - Ford Powerstroke Diesel Forum
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Old 03-02-2010, 05:01 PM
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IAT1 SENSOR location and problems

Hello I have a 2005 6.0. The check engine light came on the other day. I hooked up the scanner and got two codes P0113 and P1102.
P0113 - IAT - Intake Air Temp Sensor
P1102- I believe some type of air fuel metering. ** now know its MAF sensor issue**

I have been trying to find more info on the IAT sensor. I have already replaced the gummed up IAT sensor in the intake manifold and it did not clear the code.

After doing some more searching I realized that there are two IAT sensors.

I believe the other one (IAT1) is located in the MAF sensor. Is this correct?
any info on testing or cleaning this sensor to try and clear the code would be much appreciated before I replace the MAF sesnsor.


Thanks Kyle

Last edited by TIERNEY; 03-02-2010 at 05:11 PM.
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Old 03-02-2010, 07:19 PM
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The last time I had a truck in with those two codes, it turned out that whomever was the last one under the hood left MAF/IAT #1 connector unplugged. And yes, IAT #1 is integrated into the MAF sensor, just as any Ford gas engine powered vehicle has been since 2003. This is why MAF sensors now have six wires instead of four.

But in answer to your last question, I would check the MAF/IAT #1 harness for an open circuit between connector and the PCM before jumping the gun and replacing it. If the vehicle in question has one of those aftermarket "re-usable" type filters in them, sometimes the oil will get onto the sensor element as well, and cause the readings to go haywire.

Last edited by m-chan68; 03-02-2010 at 07:25 PM.
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Old 03-03-2010, 12:37 PM
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Thank you for your reply. The truck is completely stock. The air filter is a ford part. The connector and all the wires seem to be tight and secure. I followed the harness back as far as I could access and didn't see any problems visually.

After cleaning the sensor with a solvent I cleared the code. This time when I hooked up the scanner it was reading as just the MAF sensor.

The check engine light did show up after the next drive.

Got a price on the part and is expensive so trying find the issue first.

any more help would be great!
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