I want to add a chip to my jeep...i believe the IAT is behind the throttle body...but i dont know which two wires need to use for the chip. The company i bought it from said generally they are a black wire with a red stripe an a black wire with a blue stripe...which neither of these colors are on the connecter behind the throttle body....please help
Intake Air Temperature sensor.
It has to be installed ->BEFORE the throttle body, to sense the density of the air entering the intake manifold, based upon intake manifold temperature.
It provides an input voltage to the PCM, (Powertrain Control Module)
It's a Negative Thermal Coefficient sensor, (NTC. It uses two wires)
Meaning, as intake manifold temperature Increases, resistance in the sensor increases.
(Less voltage)
As the temperature Decreases, resistance in the sensor Decreases. (More voltage)
The PCM then uses this input to calculate the following;
1.Injector-Pulse Width
2.Adjustment of spark timing.
Just thought you might want to know.
Wish I knew what size your engine is.
A. The IAT in the 3.7 Liter engine, is located in the Left side, {Drivers} of Intake Manifold Plenum. (BEFORE the throttle body)
See that plastic 'snorkel' tube, that comes from the air cleaner housing, and goes to an oval shaped aluminum housing? That oval shaped, {On the end}, housing is the Intake Manifold Plenum.
The 4.7 Liter engine has the IAT in the same place.
The 4.0 Liter has the IAT installed INSIDE, the Front of the Intake Manifold Plenum. (Before the throttle body)
The color of the two wires are Brown with a Yellow stripe, (Thick 20 gauge wire), and Black with a Red stripe. (Thinner wire. 18 gauge)
Number of Trips to Set Code: 1
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