Question about 2005 Ford Explorer
I am installing a performance module on my explorer and it says to find the wire for the IAT sensor or the ECT sensor and i have no idea which on it is. I have called parts stores and the ford dealer and they have no idea. 05 explorer xls 4.0 flex fuel. Can u help????
I hope you didnt buy a universal performance moduel. i have removed so many of these scams. they cause drivabilty problems. all it is is a resistor changing the value of the signal. this is not a good idea. there are legit companys selling moduels or programers that do work. but from the one i have seen they dont help that much.
Posted on Sep 11, 2008
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Posted on Jan 02, 2017
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Jan 09, 2017 | Ford Explorer Cars & Trucks
Feb 23, 2016 | 1994 Ford Ranger Supercab
The control module detects a temperature difference between the ECT sensor and the IAT sensor of more than 15°C (27°F) and the time elapsed cranking the engine without starting is more than 5 seconds.
The control module detects a temperature difference between the ECT sensor and the IAT sensor of more than 15°C (27°F). The vehicle must then be driven for 5 minutes over 40 km/h (25 mph). If the IAT sensor temperature decreases more than 5°C (9°F), an engine block heater was detected and the test is aborted. If the IAT sensor temperature does not decrease, an engine block heater was not detected and DTC P0116 will set.
Inspect the ECT sensor terminals for corrosion and for engine coolant leaking through the sensor. Engine coolant that is leaking through the sensor will create a high resistance short to ground. This condition results in less voltage on the ECT sensor signal circuit, which is interpreted by the ECM as a warmer ECT.
An IAT sensor that is skewed colder at various ambient temperatures due to greater resistance than is normal will increase the range between these two sensors. Measure and record the resistance of the IAT sensor at various ambient temperatures, then compare those measurements to the Temperature vs Resistance table. Refer to Temperature Versus Resistance .
A slight to moderate resistance in the IAT sensor signal circuit or low reference circuit will increase the range between these two sensors. This condition results in a greater voltage on the IAT sensor signal circuit, which is interpreted by the ECM as a colder IAT.
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