Mercruiser 6.2 Fuel System Fault Code

PremierPOWER

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Aug 31, 2018
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2018 Mercruiser 6.2L 300HP

Was pulling my 2018 Monterey 335SY out for the season last weekend and had a couple codes show up on the Vessel View. Anyone know off hand what this 902-5 code means? I know the 946-6 code is the stupid O2 sensors. I have spares to change them out, although the engines are still under warranty. I do have a Rinda scan tool if I need to further diagnose, but figured Id check to see if anyone has had this code before and what they found out.

Codes.jpg
 

alldodge

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The PCM has had to add too much fuel trying to get the correct O2 reading.

The 902 code should clear when the O2 sensor is fixed
 

alldodge

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Don't think there is. Some time back I found a draft copy of the PCM 112 codes. Being draft it was just a start. Search for PCM 112 codes and you may find it still out there
 
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