2003 df115 check engine light

[suzukithree]

Engine seems to run well. 450 hours. Just changed plugs & oil. Check engine light was blinking a code at me: 3 blinks, pause, 2 blinks Long pause. Repeat.
Is there a cross reference somewhere to what the codes mean?

[boats.net]

3-2 is map sensor, might remove it and clean passage in manifold.

[catacom225]

3-2

Check the Engine Holder for corrosion