Service Engine Light

swstrvlt

Recruit
Joined
Jul 31, 2020
Messages
2
2015 Fourwinns V275, Single Mercruiser 350MAG, 104 Hours, 2nd owner. Service Engine light just came on. Reduced throttle and listened, no alarms at all. Brought up RPMS without a problem and returned to the dock. Boat mechanic is 3 weeks out. Mercruiser factory says that with no alarms and the engine NOT going into Guardian, engine is fine and usable, alarm is emmissions related. Has anyone had this issue? I searched and found a software for reading the code from the engine but haven't made that leap yet. Does anyone have experience with the code reader from Rinda Diacom software?
 

alldodge

Moderator
Staff member
Joined
Mar 8, 2009
Messages
40,582
Howdy
With the new motors you have to have a scanner to see what is going on with the motor. Rinda has both Techmate Pro and Diacom. Diacom is more versatile but Techmate works
 
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