MD90B Diagnostic Codes

Hi,
I am starting to overhaul my whaler with twin 2006 MD90B TLDI outboards. Before pulling everything apart I checked the diagnostic codes and got the following:

Starboard: 7000 C (my understanding is this is over temp, it would make sense as the engine stopped peeing the last time I ran it, I shut it down before any warning and had noticed the stream becoming weaker in the past month)

Port: 4000 C and 4000 AC (my understanding is this is about past abs current battery voltage? It would make sense as the bilge is on that battery abs it’s rained a lot)

Could someone confirm these? I found a manual for the MD90C but not sure they are the same.

Thanks!
AC

in mode 3, 700 C is ffp failure. 400 c is low oil level. 400 ac is low battery history.

pvanv said:

in mode 3, 700 C is ffp failure. 400 c is low oil level. 400 ac is low battery history.

Click to expand...

thank you! What would be the symptoms of an ffp failure? I finally got a service manual and now see that B is over temp, C is a component failure. Would stalling at idle be a symptom?

Possible.