Ok guys, I posted a question a couple of weeks ago about what Check engine code 1398 means. I have been doing a little research on it, and it seems like the crank. pos. sensor, but nothing tells for sure. Does this sound like a pretty sure thing, or is there the possibility it could be something else? I did a complete tune up on it not very long ago at all. Any help would be appreciated. Thanks

 

CPS...There about 75 bucks.....If thats not it take the part back and say you don't need it...