420 sel no spark
 

This car has no spark. I have checked coil, etc. Was told it could be the crank postition sensor, but there is one in the back and one in the front.
Anyone know how to check to see which one it is. I think it would be the one at the front of the crank, which is cheeper but would like to know for sure.

Thanks,
petrarock

It would be the in the rear, the Crank Position Sensor.

The crank sensor on the back that reads the flywheel is the one you want to look at,
the one thats on the front is a dead sensor it only used for dyagnoistics.