Question about 1992 Mercury Capri

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I own a 1992 Mercury Capri and I cant find my IAT Sensor. its not connected to the intake line anywhere and I dont think that its the plug in on the airflow meter. Its supposed to only have two wires coming out of it and I dont see one. And the company that makes the performance mod I made said its an external sensor and not built into the MAF sensor

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It is usually hidden somewhere it the air cleaner

Posted on Sep 30, 2009


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I have a 2002 hundai santa fe 2.4l with p00113 code,How to check intake air tempeture sensor?

Before I give you my answer I need to advise you, if you have an aftermarket/performance air intake, it will trip an IAT code pretty often, you will either have to live with it or try to find a "dummy" sensor (a fake IAT sensor designed for cold air intakes that will make your engine computer think the incoming air is a certain temperature) if you dont have an intake:

Chances are if the IAT code is coming up (assuming you do not have a cold air intake system) your IAT sensor is probably bad. There is a very long and tedious process of testing the sensor and the circuit for the sensor, but with the average price of a new IAT sensor being around $12 I pretty much always suggest just replacing the sensor. On your vehicle the IAT is part of the mass air sensor assembly, but can be replaced independanlty, and shouldn't be a very difficult replacement.

Apr 07, 2015 | Cars & Trucks

1 Answer


The IAT is part of the MAF Sensor (Mass Air Flow) which is located on the Air Intake Tube between the Air Filter and the Air Intake/Throttle Body

Feb 13, 2014 | 1997 Mercury Villager

1 Answer

89 dodge ram truck 2500 2wd code reader says 4 codes dont know what they mean p1509, p1298, p0118 andp0113

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

Dec 16, 2013 | Cars & Trucks

1 Answer

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Jul 29, 2017 | 1992 Mercury Capri

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Where is my IAT sensor? I bought a X2 Module and they do work because my friend has one and dyno showed an increase from 228hp to 256hp 
If its the air temp sensor removing it or unplugging it MAY do a few things depending on the type of sensor it is. Most send a signal to the computer in terms of resistance (ohms) that changes with temp. That signal is used by the PCM in conjunction with others (MAF O2s MAP) to determine timing and fuel requirements. If you unplug the IAT sensor the computer (on most GM cars) will see an open or infinite resistance and give the lowest possible temp input to the computer for air temp. That can increase timing across the RPM range sometimes giving a few extra ponies. It can also lead to detonation if too much timing is present.

I hooked up a 10k ohm potentiometer to my IAT sensor so I can dial in the temp I want. If I want some timing ****** for nitrous I dial it so the computer sees 185 degress F and it takes 2 or 3 degrees total timing out. For more timing I dail in 20 degrees F and it will advance it some. Works good.

This may be totally different on Capri but most IAT sensors work the same. As for changing the reading on the IAT will not give a 28 HP difference since the ECM will only give a given default and P.S the Potentiomete is about $6.00 for a good one at Radio Shack. 

Sep 30, 2009 | 1992 Mercury Capri

3 Answers

Where is my IAT sensor located? Its a 1992 Mercury Capri non Turbo. I bought a Performance module and its splices into the two IAT wires. Is

Save your money and don't attach the module, it does not work. It only works during idle and after that the O2 and MAP sensors take over to control the air fuel ratio and timing. Take note that if there is a conflict with the program to your ecm's parameters, your engine will run under limp mode default which would result in less HP and performance. Good luck and if you need ore performance just spend the extra to have your car Dyno Turned. 

Sep 30, 2009 | 1992 Mercury Capri

1 Answer

1992 Mercury Capri IAT

it is located in and is a part of the airflow meter.

Sep 29, 2009 | 1992 Mercury Capri

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