I have Crank no start.what could be the culprit?
Crank no start. New ecm. New ignition coil. New crankshaft
sensor. New battery, but drains trying to start van. I have
spark (tested with spark tester). Can hear fuel pump turn
on when I turn the key. Cranks and wants to turn over but
drains new battery before it actually turns over. OBD says
cant communicate with ecm.