Sorry if someone already asked this question but I have a problem, I bought a 90 240sx SE about 2 months ago and it just hit 115,000 miles. It's all stock but the check engine light just came on. Hopefully its not a big problem but Im wondering what caused the light to come on and how to get it off. The light just annoys me thats why im askin. Any help would be appreciated... Thanks!!

 

usually means somethings wrong, i.e. "check engine"

check to see which codes it is throwing (how to do it is somewhere on here, was asked and answered recently in the general section I believe), and after you get the code it will either be self explainatory or come here and post up the problem.

Can't really help till you do that.