Yup, get those codes read first!

Also, I nominate your car for dirtiest engine bay of the year.

 

Without better pics, it's hard to tell, but this is my suggestion.

1. Get rid of that stupid filter. A filter on the MAF is BAD JUJU. Especially if it is oiled. Either put on a cheap pipe, or go back to the stock airbox.

2. I don't see your AIT sensor. AIR INTAKE TEMPERATURE. Where is it? This is the sensor that was in the stock airbox. If it is not hooked up into that filter, this can cause large problems.

3. Dirt dirt dirt. IF your engine bay is that dirty, I hate to th ink of the condition of the sensors, connectors, battery terminals, or the internals for that matter. Clean it, inside and out. B12 Chemtool cleaner in the tank, change your plugs and wires, everything.

Take care of your car, it will take care of you.

Codes can be read for free at almost any auto parts store in the country. Can't tell you if it is YOUR country, because you didn't fill your location field out in your profile.

 

^^ What red said.

And thank you red, I knew something looked wrong, I was looking for the IAT sensor too!

 

He said he poked a hole in the filter for the sensor, I assumed that meant IAT.

Check the TPS brand. If its Dae Sung, then replace it either way because if its not bad and causing issues, it will be soon. That sensor is on the throttle body right before the intake manifold.

 

Vaccum leak? My car did that when I had a leak. Check the hoses and make sure they aren't leaking.

 

filters not oiled,ait sensor is in the filter,i live in charlottetown pei,canada.car has only been in my possesion for a month tops and my main priorty during the month was getting it ready for inspection and making it drivable. cleaning the car was secondairy to that.and everything else that was done i just had laying around.
just got the car inspected yesterday and between work and school was planning to start cleaning the car(including the engine bay). only reason the filter is on the maf like that is because i've seen a lot of ppl(outside of this forum) with pretty much the same set up and didn't think it would be overly bad for the car.
right now the car is outside at the gfs dads house with the battery unhooked(more then likely overnight) to reset the ecu. tomorrow i'll be going out and test fitting the intake i had from a '92 accord,and mocking everything up,if it needs to be cut and welded in anyway i'll be bringing it to school next week to do it myself and also be replacing the filter(due to the hole i drill for the ait),until then i'll be re-installing the stock airbox.
is there anything in the lower portion of my cars intake that would cause adverse effects by removing it?
as far as getting the codes read for where i live nobody does it for freee what so ever(hate watching american tv because i always see it advertised in commercials).

 

Try and find someone local then if you can with a scanner to get it read.

As far as removing the lower half, as long as there's a filter between the maf/tb and the air coming into the intake you should be fine. Most people on here remove the resonator from the lower half of the stock intake.

 

Dam red PEI mud lol, I have a cottage in miscouche and know that you can either have a clean car,or a car that you drive on PEI ,only 2 choices lol .,just go to any cdn tire,or a local garage,(bite the bullet)pay them to plug in the scanner, problem pinpointed!. ..longer you wait ,the more expensive the problem will get ..I'm leaning towards a bad cat,or 1 oor both o2 sensors. ......

 

haha yeah,it's not an easy task keeping your car clean on pei. i live in montague so i'm going to give judsons auto center a call probably today after school. i figured the check engine light was deffinatly a sensor just unsure of which one.

car goes to the shop tomorrow to get scanned. pretty sure that cats clogged,started it up this morning and drove it seemed a lot better but still not how it should,seemed to rev freely and didn't feel like i had to be at wot to get accelerate slowly.
Decided to put my stock airbox back on anyway till i can buy a cai more then likely from ebay.When i got that done took the car for another rip and it started lipping its way around again,the engine was still a bit warm when i started and as it warmed up it got worse. pulled back in the driveway got out and looked up the car,the heatshield is still on so i couldn't see the cat its self but there was a lot smoke/steam coming from the cat,and just the cat. so i'm starting to think its the cat,we'll see what they come up with tomorrow. the car is already inspected so i'm just going to delete the cat for the year and replace it next year

 

Is the manifold bolted or welded to the converter? If the exhaust manifold is cracked, and it has the catalytic converter welded to it, your Hyundai delership must replace the manifold/cat assembly free of charge. If not, it's easy enough to get a pipe made up to get rid of the cat, but then you have to work around the O2 sensors not seeing a converter.