Yes...another "service Engine" question.

[OldSchool]

I have heard this could be anything from needing an oil change to needing a tune up or more.

Just had the oil change 4 days ago (at about 100,500 mi). Within a day, this light came on. I had also read to get a code reader. That's cool...is there a specific kind? Where do I get it?

I did get new plugs, but it's been SO flippin cold...I need to get out & swap those out.

 

[ferretx9]

Some parts stores will " scan " your vehicle for free in their
parking lot .

you can buy a scanner for around 60 and up.

Also - you need to check your oil level and make sure filter isn't leaking.