Okay, so obviously, I have a 98 honda civic ex Automatic.
I bought it not too long ago and the guy I bought it from had it stolen before. It had no air intake or sensor. So I bought a cheap ebay one [cuz I'm super broke right now :P I don't have enough for an AEM one haha] and I installed it. [ http://i.ebayimg.com/00/$(KGrHqN,!jcE2HIWLGlHBNm041ms6Q~~0_12.JPG ] <--that's it right there. Okay so I noticed that this one --> http://kandn.com/images/l/69-6000TR.jpg has the MAF sensor (Mass airflow sensor) and mine does not.
Ever since I bought the car the check engine light is on and it still won't turn off even after I installed the intake. My dad has scanned it for the codes, but nothing will come up yet the light is still on! :O
He's even tried to erase the code but it won't budge.
The car takes off very slowly. I nearly have to step on the gas the whole way down for it to gain some speed on take off and sometimes when I stop at a red light or a stop sign, the car's rpm's will go up and down almost all the way down making the car feel like it want to turn off.
I really don;t know what the problem could be?! Could it be because it's missing the MAF sensor completely???
HELP!!!
xx

 

There is not MAF sensor on a '98, it is MAP controlled. I suggest replacing any missing parts with stock ones from a junkyard rather than super ebay crap. If the light is on, there is a code, it should read.