Quote Originally Posted by stokes_osu View Post
Ok guys, I dought a vehicross from an older man for 5K it is a 2001 with 56k miles on it. I got it cheap do to it setting for some time, it is in excellent shape and looks like he took great care of it.
The question, OK when he sold it to me he said he had just had it serviced and all of the maintenance done on it, it ran great the first couple of times i had it out, for the last month when i drive it over ~20 miles in one trip it goes to cutting out like it is having miss fire issues, " tech computer said random miss fire code" I changed the spark plugs and looked it all over and everything looks great. super clean and great looking. So recently i changed the oil hoping that this would help, but same o same o.
it dose not do this or act weird at all for the first 20 miles or so but when it gets to that point it goes to galloping and sets the check engine light off... the light will go off if i don't drive it to that point for a couple of days... I don't want to hurt it and i cant afford to take it to some one else but i am just confused why it will run god for 18 miles but dot 20 or 25, now it is not any set # these are approximations

Have the engine code read to figured out where is the issue.

Then come back & post the code number so we can help you better.