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Mercruiser Fault Codes??

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Old 12-14-2018 | 10:18 AM
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Originally Posted by BUP
just to let you know the engine was changed out under full warranty with very little engine hours and has a different engine serial number than original engine. I do know the current engine serial number thou.

Anyways so what temps is the engine running at since you mention normal ? different engines have different normal running temps.

IMO your O 2 sensor (s) possible are getting contaminated by something going thru the exhaust and or possible by water and or condensation.
BUP I have also looked into a Max Volt Catalyst eliminator, I cant post a url because I don’t have ten posts yet. They have them at Hardin marine and cp performance, it has a 6 pin and 5 pin harness that plugs into the engine’s looms and has 4 wire 02 sensor ports that will send their own signal to the ecm. I have a 6 pin harness with a orange cap, a 4 pin plug that is plugged in labeled “diagnostics” and a CAN plug with a yellow terminator yellow cap on it in my engine as listed above 350 DTS ^^ Would the Max Volt Cat eliminator work in our apps?

Last edited by Wakedirt; 12-14-2018 at 11:12 AM.
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Old 12-14-2018 | 12:29 PM
  #42  
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Yes they CP / Hardin has that since 2011 for sale if not a tad longer. I do not know any longevity / results of that system they are selling so I can not comment for that cat eliminator.

For the record I can not do that install nor remove the cats FROM a EC engine. EC = emission control. The reasons why is because all that is federal mandated and I hold a couple of LIC and Marine dealer LIC and even a boat builder LIC.

Kind of the same results as a auto dealer LIC removing a cat from a state register auto thats street driven -- its a huge fine and can mean any LIC pulled. I am not risking any of that. UNLESS the original app is over 500 hp from OEM stock build then I can do it.

See the first thing when a OEM dealer repowers a boat using OEM engines and related parts - that OEM wants HULL ID and engine serial number. That OEM will and can only sell you the required federal law engines if its a EC engine from the start / when it was a new built boat. You have to provide a hull ID to get OEM engines for the past 9 years now, If one does not provide an hull for a repower - one does not get that OEM engine. Just saying. Things changed 9 years ago for all marine engines under 500 hp actually for all boats.

I have a story and I think it came from advice on wakeworld from a fellow wakeboard owner. He brought his boat in a month ago to me and self inflicted about 7 k worth of damage on his CAT engine / wake boat. One has to watch out for the advice one receives. There is good advice and really bad advice out there for the taking. Just saying.
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Old 12-14-2018 | 12:34 PM
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Originally Posted by BUP
Yes they CP / Hardin has that since 2011 for sale if not a tad longer. I do not know any longevity / results of that system they are selling so I can not comment for that cat eliminator.

For the record I can not do that install nor remove the cats FROM a EC engine. EC = emission control. The reasons why is because all that is federal mandated and I hold a couple of LIC and Marine dealer LIC and even a boat builder LIC.

Kind of the same results as a auto dealer LIC removing a cat from a state register auto thats street driven -- its a huge fine and can mean any LIC pulled. I am not risking any of that. UNLESS the original app is over 500 hp from OEM stock build then I can do it.

See the first thing when a OEM dealer repowers a boat using OEM engines and related parts - that OEM wants HULL ID and engine serial number. That OEM will and can only sell you the required federal law engines if its a EC engine from the start / when it was a new built boat. You have to provide a hull ID to get OEM engines for the past 9 years now, If one does not provide an hull for a repower - one does not get that OEM engine. Just saying. Things changed 9 years ago for all marine engines under 500 hp actually for all boats.

I have a story and I think it came from advice on wakeworld from a fellow wakeboard owner. He brought his boat in a month ago to me and self inflicted about 7 k worth of damage on his CAT engine / wake boat. One has to watch out for the advice one receives. There is good advice and really bad advice out there for the taking. Just saying.
awesome thanks for the info, I do see these are for “race” only applications
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Old 12-14-2018 | 12:35 PM
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Why remove the cats - ? There is no power gain there - cars with 600 hp and way above have cats with no power loss plus if you board or surf behind the boat U WANT CATS. You are not sucking down as much of the harmful emissions then. Thats the reason they are in place for health concern for boarders cause people have died in the past from the toxic emissions. Why do you think all wake board boats since basically 2006 have cats ?? when they were not even federal mandated ? Cleaner air behind the boat so people can play and the manu s do not have more lawsuits from emission related deaths.

Also so much easier working on boats from a health stand point with cats. At the end of the day easier on lungs if you know what I mean

IF YOU HAVE KIDS whom board or play behind the boat LEAVE THE CATS installed. I promise

Last edited by BUP; 12-14-2018 at 07:15 PM.
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Old 12-14-2018 | 12:47 PM
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Originally Posted by BUP
Why remove the cats - ? There is no power gain there - cars with 600 hp and way above have cats with no power loss plus if you board or surf behind the boat U WANT CATS. You are not sucking down as much of the harmful emissions then. Thats the the reason reason they are in palce for health concern for boarders cause people have died in the past. Why do you think all wake board boats since basically 2006 have cats ?? when they were not even federal mandated ? Cleaner air behind the boat so people can play behind and the manu s do have get anymore lawsuits from wrongful deaths. Also so much easier working on boats from a health stand point with cats. At the end of the day easier on lungs of you know what I mean

IF YOU HAVE KIDS whom board or play behind the boat LEAVE THE CATS installed. I promise
I am not planning on removing the cats, just trying to get the boat to stop throwing the alarm 48 and 50 stbd side catalys code and not run rich. I am hoping just a simple set of new sensors is the fix like Djam posted above. I have the proper cables to clear the codes for my rinda entroute in the mail as we speak. Just doing my homework and get this bad boy cleared up. Thanks again for the help. I hope djam chimes in on which sensor was his fix
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Old 12-14-2018 | 01:53 PM
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the listing for race apps on the CAT eliminator is so CARB and Emission laws do not get on the sellers nor manu back causing them to not sell it nor fines. Kind of like the surgeon general that stamps all boxes of cigs stating they cause cancer but still allows the sales of them for making my point.

The eliminator is going to do ZERO anything for u leaving the cats in there trying to fix real issues that the engine side is producing. That set up the cat eliminator is for one is whom wants to remover the cats that has a perfect running engine or issue with the cats themselves only.

Take your boat in to a real shop to get it fixed and have them run the engine serial number for possible recals and updates and service bulletins to further correct procedure whatever applies to your engine and manu date code / serial number.

Wake world is not not a boat repair facility along with the many darts thrown for ur issues. I doubt that 99.99 percent people on most public forums even know any current fault codes onan EC marine engine . Also Diacom is not the best scan tool to use for Mercruiser EC engines especially with DTS. Yes currently Diacom got G3 updated but still Merc g3 scan scan tool is the best for MERC cat engines especially if one has DTS cats

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Old 12-14-2018 | 03:03 PM
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Are you saying you have FAULT CODES 48 and 50 ???

I do not recall any 48 or 50 Fault ID codes for Merc cat PCM 09 or Merc PCM 112 based control engines. Are you sure you have the most current scan tool thats up to date for Merc cat engines ? I do recall fault ID # 49 and # 51 but IF I recall correctly 48 and 50 Fault ID codes is not real fault codes for Merc cat engines. G3 codes for Merc ?

With that said I am going off the top of my head but do not remember 48 and 50 fault ID codes ever period. I would have to look that up to be 100 percent sure but I am 98 percent sure they 48 / 50 are not faults. I do not have any of that info handy currently to make sure I am 100 percent correct.

With that said you have 48 and 50 fault ID codes ?? or am I misreading your post above ?
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Old 12-14-2018 | 03:08 PM
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Originally Posted by BUP
Are you saying you have FAULT CODES 48 and 50 ???

I do not recall any 48 or 50 Fault ID codes for Merc cat PCM 09 or Merc PCM 112 based control engines. Are you sure you have the most current scan tool thats up to date for Merc cat engines ? I do recall fault ID # 49 and # 51 but IF I recall correctly 48 and 50 Fault ID codes is not real fault codes for Merc cat engines. G3 codes for Merc ?

With that said I am going off the top of my head but do not remember 48 and 50 fault ID codes ever period. I would have to look that up to be 100 percent sure but I am 98 percent sure they 48 / 50 are not faults. I do not have any of that info handy currently to make sure I am 100 percent correct.

With that said you have 48 and 50 fault ID codes ?? or am I misreading your post above ?
it’s the alarm/error number that shows up in the Smartcraft gauge. Alarm sounds every 2 minutes and it shows a check engine symbol like in cars, I go to the alarms and it reads catalyst fault #48 stbd o2 sensor, I am not at my boat today but I can get the exact working tomorrow. Djam above says he has the same alarms, 48 and if you hit next on the alarm it also says alarm 50, I don’t recall what it says sensor/issue is associated with #50, I will know tomorrow when I can run down to the boat. Djam (above) post #27 said he replaced a 02 sensor and it self cured, I was curious which one he swapped.

Last edited by Wakedirt; 12-14-2018 at 03:10 PM.
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Old 12-14-2018 | 07:26 PM
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he reported it cured it for now but in the spring will know more with more run times as how I took his post.. most of the time something is causing the o2 to possible fail -- not the o2 just failing because. Yes that can happen as well. but the odds are something is causing the o2 fail. Read post 23 and 33 of mine...... also connections / harnesses as well can be in the mix
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Old 12-14-2018 | 07:32 PM
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Originally Posted by trdehmer
OK, according to Mercruiser:

"All the faults you mention below are for optional sensors, some are not installed on most boats. Basically the engine is looking for sensors that are not installed and don't need to be there. You can ignore or silence these faults within the vesselview mobile app. Dealers have service manuals and software that lists faults for the engine. The idle RPM for your engine seems normal. If you have some of these sensors installed, for example a smartcraft style fuel tank sender, have a dealer diagnose the sender and circuit for problems.
Thanks,
James
MerCruiser Consumer Support"
Bingo YES like i said if you have some of those set ups installed then a fault is NOT normal. EXample if you have DTS and steering angle then you have steering position --- if you DO NOT have steering angle then that fault will show on certain models. There was time down the road the NON install set ups did not show codes. Want to say late 2000 s. They defaulted but not to a fault code.
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