Why is there a specific part called IAT different than the MAP sensor? on a 2003 Hyundai accent

Learn how to use YouTube. Go to the YouTube web site, and in the search box at the top of the screen type "2001 hyundai accent map sensor". Look at the videos it brings up -- it may not show exactly a 2001 Accent, but you should be able to find an engine that looks like yours and see where the MAP Sensor is.

have a look and see if this link helps you out.
Where is the map sensor located on hyundai accent 2002 16L DOHC 16V Google...

Here's a link on your SENSOR. http://www.autozone.com/repairinfo/repairguide/repairGuideContent.jsp?fromSearchPage=true&pageId=0996b43f80378239&partName=Intake+Air+Temperature++IAT++Sensor&partId=0996b43f80378239

On newer vehicles, the IAT is often integral with the mass airflow sensor. Your dealership's parts department will be able to confirm this.

For Hyundai Car 1999-05 - Intake Air Temperature (IAT) Sensor Location (check several options):

1.- The IAT sensor is located against the firewall to the left side of the engine. It is combined with the Manifold Absolute Pressure (MAP) sensor.

2.- This sensor is located in the air intake plenum assembly. On some vehicles this sensor is combined with the MAP/MAF sensor.

3.- The IAT sensor is located in the air plenum assembly. On some vehicles it is combined with the MAF sensor.

4.- This sensor is located in the air intake plenum assembly. On some vehicles this sensor is combined with the MAP/MAF sensor.

5.- This sensor is located in the air intake plenum assembly. It is combined with the Manifold Absolute Pressure (AFS) sensor.

6.- This sensor is located in the air intake plenum assembly. It is combined with the Manifold Absolute Pressure (AFS) sensor.


In the next graphic, check the position 2...



FIG : Underhood sensor locations-Elantra 2004-2005 2.0L engine


Hope this help (remember comment and rated this) TY for using Fixya.

Did you RESET the Adaptives?.. if you didn't that may be the problem. To reset adaptives, remove both battery cables and touch the cables together for 30 seconds (60 seconds is better), then reconnect the cables to the battery -- see if that cures it. You are correct, there is no EGR valve on that engine. However, there are several other sensors which could be causing your problem.. one is the MAF, the other is the MAP and still another is the IAT and the ECT (MAF - MASS AIR FLOW, MAP - MANIFOLD ABSOLUTE PRESSURE, IAT - INTAKE AIR TEMP SENSOR and finally the ECT- Engine Coolant Temp Snsr. If any of these sensors is malfunctioning,& lying to the ECM, they could cause a 'LEAN' fuel condition and that's why your NOx's are high.

IAT SENSOR IS MOUNTED INSIDE INTAKE AIR HOSE TO THE AIR CLEANER ASSEMBLY. THE MASS AIR FLOW SENSOR IS ALSO MOUNTED TO THE INTAKE AIR HOSE OF THE AIR CLEANER ASSEMBLY. O2 SENSORS LOCATION.YOU HAVE 2 # O2 SENSORS.YOU HAVE ONE THE EXHAUST MANIFOLD.THE OTHER SENSOR LOCATED DOWN AT THE CATALYTIC CONVERTER.

Without actually looking/diagnosing your vehicle, the problem could be just about anything (fuel pressure, out of time, vacuum leak, defective sensor (i.e., MAP, MAF, ECT, IAT, CKP, etc.), Does the Check Engine light come ON when this happens? Whenever the "Check Engine" light comes on, there is always a DTC (Diagnostic Trouble Code) stored in the ECM (Engine Control Module). You'll need an OBDII (On-Board-Diagnostics) scanner to retrieve any codes recorded/set in ECM. Once you do this and let us know what, if any codes are set, then we can go from there.

Usually on inatke plenum (throttle body) and is part of M.A.P. sensor. If not there, check area of firewall on passenger side.

The MAF is mounted in the intake air hose of the air cleaner assembly.
The MAF is mounted in the intake air hose of the air cleaner assembly.
The MAF is mounted in the intake air hose of the air cleaner assembly. On some vehicles this sensor is combined wit the ATS sensor.
The MAF is mounted in the intake air hose of the air cleaner assembly.
This sensor is located in the air intake plenum assembly. It is combined with the IAT sensor.
The MAF is mounted in the intake air hose of the air cleaner assembly. On some vehicles it is combined with the IAT sensor.