1997 Plymouth Voyager CPS Sensor keeps dying

Hi,

I have a 97 plymouth voyager with the 3.0L engine and 3 speed transmission.

A few days ago I decided to wash out the engine area at the car wash (I've done this dozens of times before). About 15 minutes later, I made it home and left the car running in the driveway as I was going to leave somewhere again. Well, it stalled. I tried to turn it on and it wouldn't turn on.

I did do some checks as I am a pretty good hobby mechanic and found it had no spark.

I thought I would change the crankshaft position sensor first, which did fix the problem. However, about 20 minutes later it stalled again.

I changed the CPS 4 times now and it won't run for more than 5-20 minutes before I need to replace the CPS again.

I did try changing the computer & then the CPS but the same thing happened.

I tried to wait a few days and then try again but that didn't help either. I did change the CPS as part of a tune up I did a year ago.

What would cause the CPS to short out so much? It's been atleast a week now that that I washed out the engine and would think all the water would have dried up.

Could there be a different problem, and changing the CPS is just partially helping it?

Any advice would be great!