Options

Mercruiser fault code 312

noidea44noidea44 Member Posts: 14 ✭
in General Boating Discussions
Recently replaced exhaust manifold, elbows and the four 02 sensors.  Today, while cruising around an alarm went off. It ended up to be code 312 (CATM_O2 LEAN RESPONSE PORT).  What would trigger this?


· Share on FacebookShare on Twitter

Comments

Sign In or Register to comment.