[LittleHoov]

Pretty classic behavior of a bad crankshaft position sensor.

If you search the forum, most all threads regarding a bad crankshaft position sensor have a pretty similar description.

What makes it difficult though is the sensor doesnt always throw a code when it goes bad, making the check engine light come on. Several people have replaced them on a hunch and had their problem go away.

I replaced mine not too long ago, but I was getting repeated check engine lights within days of it first exhibiting symptoms.

There are other things that can cause it, but that would be where Id start since its such a common issue.