Check Engine light and Alarm

[jm]

I have a 2005 225HP s/n 05101778, Model E225DPLSOC.  I got a check engine light.  The engine set a code of water in fuel.  We changed the water filter, and checked for water in the fuel.  When I ran the motor again the light cam on again and set the same code.  I disconnected the connector at the water filter. Ran the motor again, and still get the check engine light.  Same code.  I have been told I may have a bad EMM. 

Is there anything else that can cause this condition?

[ElderSparky]

With the sensor probes disconnected, if the alarm still occurs the issue would be either chaffed wire shorting to ground (somewhere between EMM and connector) or internal EMM failure.

[jm]

Thanks for the help.  I already checked for the chaffed wire.  Looks like I need a new EMM.

John

[Hi_c]

So is it just an expectation that after 10 -15 years the EMM is going to need replacement?

[Bluewater]

No more so than expecting a computer module on your car will fail at a given time.

Most of the E-TEC motors which I am familiar with (dating back to 2004), are running fine on their original  EMM -

Conversely, we still occasionaly have to replace power packs on motors that are 30+ years old (analog technology but still solid state electronics) 

It is not like the electronics wear out, but  components do go bad.

Causes may vary - voltage or current spikes, moisture in the wrong area, overheat can cause internal stresses.