Spood is my bro, and he's right as far as a lude doing that. But on your's, the 1 should be the first code. but watch it and it will repeat any codes. With the 15, you might have a bad coil or ignitor. Go pick up a multi meter. You can normally get em for about 20 bucks. But the Chilton's manual has a step by step on how to check both the ignitor and coild to see if they're working correctly.