2003 Dodge Ram.
Cranks but will not start. Trouble code is P0320 (Crank Sensor).
The sensor was replaced, but did not fix the problem. The information I have is pointing to the ECM, but it is expensive. Are there any Dodge mechanics that know of this problem?
What tests can I do to be certain it is the ECM?
in other words.....HELP!!!!
Thanks,
Billy

I guess I should have stated that it is a 3.7 V6 with autmatic trans.

go bang on the PCM with something hard(dont break it- just ap it a few times).... if it starts- you know where the problem is....

You must me ASE certified

Try checking the cam sensor signal
P0320- NO CRANK REFERENCE SIGNAL AT PCM
When monitored: with engine on
Set Condition: No signal from the Crankshaft Position Sensor is present during engine cranking, and at least 3 Camshaft Position Sensor signals have occurred.
POSSIBLE CAUSES:
1. CAM POSITION SENSOR SIGNAL
2 5 VOLT SUPPLY SHORTED OR OPEN
3. CKP SENSOR SHORTED OR OPEN OR SHORTED TO 5V REF.
4. SENSOR GROUND OPEN
5. PCM