Position sensors My daughters 2001 Galant quit the other day. I have a diagnostic reader, so I hooked it up and it gave me a P0340 camshaft sensor malfunction. I went to parts store and purchased a new sensor. The car still will not start and it continues to give me P0340 code. Is it possible for crank sensor to be bad and reader not pick it up?

It's possible that the sensor needs to be rotated. The sensor is keyed so it can only be installed in one position. The camshafts spin once for every two revolutions of the crank, so it's possible that the sensor is 360 degrees out of phase (I've had this happen on timing belt jobs on other cars - with the sensor out of phase, the car would start, and then trail off and die within a few seconds). What you can try is to carefully remove the sensor, turn it over to see the part that mates to the cam, rotate it one full revolution, and then put it back on. Try that out and see if it helps. If it does the trick, great. If not, post back up and we can try to go from there.