2000 Sonata stoping problem

Both of these are codes for the crank sensor. I've not seen these codes on this engine caused by anything other than the sensor itself. Replace the sensor and all should be well. It bolts into the block behind the starter. For the DIYer, it's probably easiest to remove the starter and then unbolt the sensor and pull it out.

Thanks, I hoped you would answer, you are the man!

What is interesting that when I read the codes, the the check engine light was not on! How is it possible that those codes were raised without the lights on? Also how does this sensor relate to the engine stopping?

Most failures on OBD-II compliant vehicles won't set the "Check Engine" lamp until they happen once each in two consecutive drive cycles.

This sensor relates the crankshaft position and speed to your ECM. Without this information, it doesn't know which plug/injector to fire or when. As far as your ECM knows, when there's no readout from the sensor, the engine is not turning.

Thanks, you were extremely helpful!

Sorry, one last thing. Does the vehicle have to be elevated to remove the starter or it can be done from the top?

You'll need to take it out from underneath. Be sure you disconnect the negative battery terminal to prevent nasty arcing/welding flashy things.

Thanks again, I will have to go to the dealer, he quoted $150 for the replacement. Seems an OK price.