Mercruiser Fault Codes??
12-14-2018 | 07:34 PM
#52
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Joined: Dec 2018
Posts: 11
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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
Last edited by Wakedirt; 12-14-2018 at 07:37 PM.
12-14-2018 | 07:45 PM
#53
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Joined: Jul 2011
Posts: 9,594
Likes: 46
From: Ft. Worth TX
RICH CONDITIONS
Yes if the poppet is not working correctly allows to much water thru at idle and tad above. Also a bad O2 sensor or one that is not reporting correctly.
a T stat not working correctly also
the coolant temp sensor
a cold running engine makes for rich conditions
also the MAP sensor can make rich running engine.
Also ignition components and spark plugs can make for rich conditions -- misfires and or weak or bad ign. parts.
fuel injectors leaking or stuck open - also incorrect signals for injector pulse width - that can even be voltage related.
An issue with the o2 surely can
I thought you scanned the engine for the codes - using diacom
Yes if the poppet is not working correctly allows to much water thru at idle and tad above. Also a bad O2 sensor or one that is not reporting correctly.
a T stat not working correctly also
the coolant temp sensor
a cold running engine makes for rich conditions
also the MAP sensor can make rich running engine.
Also ignition components and spark plugs can make for rich conditions -- misfires and or weak or bad ign. parts.
fuel injectors leaking or stuck open - also incorrect signals for injector pulse width - that can even be voltage related.
An issue with the o2 surely can
I thought you scanned the engine for the codes - using diacom
12-14-2018 | 07:51 PM
#54
Registered
Joined: Dec 2018
Posts: 11
Likes: 0
RICH CONDITIONS
Yes if the poppet is not working correctly allows to much water thru at idle and tad above. Also a bad O2 sensor or one that is not reporting correctly.
a T stat not working correctly also
the coolant temp sensor
a cold running engine makes for rich conditions
also the MAP sensor can make rich running engine.
Also ignition components and spark plugs can make for rich conditions -- misfires and or weak or bad ign. parts.
fuel injectors leaking or stuck open - also incorrect signals for injector pulse width - that can even be voltage related.
An issue with the o2 surely can
I thought you scanned the engine for the codes - using diacom
Yes if the poppet is not working correctly allows to much water thru at idle and tad above. Also a bad O2 sensor or one that is not reporting correctly.
a T stat not working correctly also
the coolant temp sensor
a cold running engine makes for rich conditions
also the MAP sensor can make rich running engine.
Also ignition components and spark plugs can make for rich conditions -- misfires and or weak or bad ign. parts.
fuel injectors leaking or stuck open - also incorrect signals for injector pulse width - that can even be voltage related.
An issue with the o2 surely can
I thought you scanned the engine for the codes - using diacom
12-15-2018 | 05:14 PM
#55
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Joined: Dec 2018
Posts: 11
Likes: 0
Got my can adapter today and showed the following:
322 stbd cylinder bank fuel trim too lean
02controlITermLowStbd
129 tps sensors failed to adapt at engine shutdown
Tps2 ecm NoAdapt
321 stbd cylinder bank fuel too rich
02controlITermLowPort
I think I got the tps because I turned the ignition to “on” for a bit without the battery perko switched over and got a fault for low voltage “failed startup”. This code didn’t pop up till after that.
PCM calibration id MY10p5ACC_8M0099133_004
i have 2 o2 sensors brand new from my last boat that I will be putting in regardless and probably 2 more because I found a good deal on some new ones. I noticed in the rinda the motor is named “starboard”. This is why I am probably getting confused as to which side the o2 sensor may have failed. Is it the motor “backward” due to being a v drive, only caught this because all the sensors on the actual port side of the boat say stb sensor and vice versa.
322 stbd cylinder bank fuel trim too lean
02controlITermLowStbd
129 tps sensors failed to adapt at engine shutdown
Tps2 ecm NoAdapt
321 stbd cylinder bank fuel too rich
02controlITermLowPort
I think I got the tps because I turned the ignition to “on” for a bit without the battery perko switched over and got a fault for low voltage “failed startup”. This code didn’t pop up till after that.
PCM calibration id MY10p5ACC_8M0099133_004
i have 2 o2 sensors brand new from my last boat that I will be putting in regardless and probably 2 more because I found a good deal on some new ones. I noticed in the rinda the motor is named “starboard”. This is why I am probably getting confused as to which side the o2 sensor may have failed. Is it the motor “backward” due to being a v drive, only caught this because all the sensors on the actual port side of the boat say stb sensor and vice versa.
12-15-2018 | 07:28 PM
#56
Banned
Joined: Jul 2011
Posts: 9,594
Likes: 46
From: Ft. Worth TX
Told you as a real SCAN of the engine you were not going to SEE Fault ID # 48 and # 50 nor ever will. I was 98 percent sure of that one in my post above. Like I said I thought you already scanned it with your diacom. YOU HAVE NOW.
the scan / faults all read if one is / facing the front of the engine. The engine and ECM has no idea how the engine is facing - heck even if it was upside down - that still applies the same, -- heck I scan engines on engine stands and spin that engine stand 180 and all over the place, nothing changes. Just saying
the scan / faults all read if one is / facing the front of the engine. The engine and ECM has no idea how the engine is facing - heck even if it was upside down - that still applies the same, -- heck I scan engines on engine stands and spin that engine stand 180 and all over the place, nothing changes. Just saying
01-02-2019 | 02:02 PM
#59
Banned
Joined: Jul 2011
Posts: 9,594
Likes: 46
From: Ft. Worth TX
you have to post your engine serial NUMBER to get correct info.
All codes are related to ones set up .
For Ghost codes they are related to not having that sensor . and or connection / connected / app in the set up so it defaults to a code. This is why one needs to know their set up and engine serial number, This helps knowing if its a real code or a ghost code persay..
Also any OEM Merc dealer could look at this for you as well.
All codes are related to ones set up .
For Ghost codes they are related to not having that sensor . and or connection / connected / app in the set up so it defaults to a code. This is why one needs to know their set up and engine serial number, This helps knowing if its a real code or a ghost code persay..
Also any OEM Merc dealer could look at this for you as well.
