Wher is the IAT?

the iat sensor should be in the fresh air inlet tube near maf sensor I hope this helps good luck.

code p0127 refers to intake air temperature (IAT) sensor---too high==causes--wiring short to ground--IAT sensor 2--mechanical fault---ECM

P1509 Dodge - Leak Detection Pump Switch or Mechanical Fault

P1298 Dodge - Air/Fuel Ratio Lean Under Wide Open Throttle Condition
- Plugged air filter
- Plugged fuel filter
- Defective fuel pump
- Ignition system weak-misfires
- Defective coil

P0118 Dodge - Engine Coolant Temperature Sensor Circuit High
- Low engine coolant level
- Faulty Engine Coolant Temperature (ECT) sensor
- Faulty engine coolant thermostat
- Engine Coolant Temperature (ECT) sensor harness is open or shorted
- Engine Coolant Temperature (ECT) sensor electrical circuit poor connection

P0113 Dodge - Intake Air Temperature Sensor 1 Circuit High
- Faulty Intake Air Temperature (IAT) sensor
- Dirty air filter
- Intake Air Temperature (IAT) sensor harness is open or shorted
- Intake Air Temperature (IAT) sensor circuit poor electrical connection

I’m happy to assist further over the phone at https://www.6ya.com/expert/brock_d67526d2a834c47e

IAT stands for intake air temperature sensor. This measures the temp of the air going into the intake. Usually attached to the intake manifold.

Thanks for choosing FixYa and welcome. It should be a MAP sensor.

Right next to the intake plenum.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

the tensioner is part of the engine mount bracket..not serviced seperately as far as i know

direct injection requires aprox. 60psi.

Hope link's description below helps.
http://wiki.answers.com/Q/Where_is_the_IAT_sensor_at