Mercruiser ECM Failed?

[Fun Times]

Back here for an update! ECM was sent to Whipple Superchargers out of Fresno California. Upon taking a peek, it was determined that the portion within the ECM wasn't receiving a signal from the crank sensor thus the motor does not know when to fire. This portion of the ECM is not able to be fixed so I have to buy a whole new unit.
I am now nervous to put the new ECM back in the boat. What made the ECM fail? Is there another underlying issue that brought up this problem in the first place? Any insight would be appreciated! Thanks

Devastating news and yes that seems to be a new, unusual type of failure and your concern is valid. Someone is going to have to thoroughly go over all the wiring circuits that pertain to that part of the entire system which I believe is tied into the CAM Shaft sensor too as they share certain circuits...Check the Crank Shaft Sensor, wire harness & plug for any damage.

Here might be a lower cost option for a used ECM, http://mefiburn.com/mercecms.asp

And +1 with [U]alldodge[/U] suggestion of checking with John in Texas, he really knows his Mercruiser repair options with honesty too.

Good Luck.