Well this is a two part question,

1) Does my vehicle have a MAF or IAT? Been reading and I've figured out some vehicles have a MAF over an IAT.

2) Where is this sensor located? I see several sensors near the intake manifold/throttle body and even one on the intake pipe itself (the one I suspect to be the IAT, but I am not sure about it).

I've tried browsing the owner's manual but can't seem to find anything about it and have googled it but with no results, so any help you guys can provide I would appreciate.

 

For 2003 4 cylinder (except SULEV) it had a MAP sensor and Intake Air Temperature (IAT) sensor, no Mass Air Flow (MAF) sensor.

The SULEV had a MAF/IAT sensor.

See this link:
Honda-Tech - View Single Post - Code P0113 cannot find IAT

 

2003 Accord 4 cylinder SULEV MAF/IAT sensor (see attached).

 

In this picture, #14 is the air-temperature sensor for cars that don't have a MAF. The MAF is #15 so you probably don't have #15 in your car.

 

Thanks, I found it. I have the LEV model so there is no MAF, and the sensor I supsected to be the IAT was in fact the IAT.