Does anyone know how to read a Diacom Service report?

[akorcovelos]

Based on the report, as there is no timer, and there are PID Time readings, meaning the engine hasn't run enough since the last reset to get a value, codes could have been cleared prior to pulling the snapshot. Also, base timing is at -5, I would think that should be -8.

[jasondon]

Is there certain data in this report that I should pay extra attention to? It's 12 pages so didn't want to post the whole thing unless someone can decipher it.

Here are the engine hours:
8.2HO


0 - 699 rpm = 50.0 hrs
700 - 1499 rpm = 28.4 hrs
1500 - 1999 rpm = 13.3 hrs
2000 - 2499 rpm = 49.4 hrs
2500 - 3499 rpm = 21.5 hrs
3500 - 3999 rpm = 1.3 hrs
4000 - 4599 rpm = 0.5 hrs
4600 - 5149 rpm = 0.1 hrs
5150 - Up rpm = 0.0 hrs

Total Engine Hours = 164.1 hrs

[Big Block Power]

Wow the dude never cracked her open. Let Katie drive that darn boat!!

[jasondon]

Full report..

Apparently something wasnt hooked up at the battery which caused it to throw the code. Also, for some reason threw a code for being reved too high.

Anything in here that I should be asking more about? Any insight greatly appreciated!

DIACOM MARINE SERVICE REPORT

04-04-2019 10:21:14

1. VEHICLE CONFIGURATION


Engine Make:Mercruiser 8.2 Mag Ho
Engine Serial No:1A353777
Model Year:
System Type: Mercury CAN Module ID =


2. PERFORMANCE DATA

Parameter Description Value Unit
Engine Speed....................................... 1146 rpm
Idle Set RPM....................................... 1144 rpm
IAC Position........................................ 0.0 %
Battery Volts...................................... 14.5 vdc
System Voltage..................................... 14.7 vdc
Sensor Power 1...................................... 5.0 vdc
Sensor Power 2...................................... 5.0 vdc
Barometric Pres.................................... 28.6 inHg
Manifold Pres...................................... 13.5 inHg
Available Power................................... 100.0 %
Guardian Cause..................................... None
Throttle Pct........................................ 9.8 %
TPS 1 ADC Counts.................................... 178 #
Engine Load........................................ 17.3 %
Base Spark Adv...................................... 1.1 deg
Sea Pump Pressure................................... 1.9 psi
Stbd ECT Sensor................................... 156.7 F
Port EMCT Sensor.................................. 128.1 F
Stbd EMCT Sensor................................... 89.5 F
IAT Sensor......................................... 56.3 F
Oil Pressure....................................... 49.4 psi
Fuel Per Cyl...................................... 194.8 mg
Fuel Flow Rate...................................... 2.4 gph
Actual Gear..................................... Neutral
Neutral Switch........................................ 1 #
Shift Anticip Sw...................................... 0 #
Emergency Stop Sw..................................... 0 #
E-Stop ADC Counts................................... 884 #
Trim Position...................................... 21.8 %
Trim ADC Counts..................................... 298 #
Fuel Level 1.......................................... 0 #
Fuel Level 2.......................................... 0 #
Pitot Pres ADC...................................... 105 #
Paddle Wheel.......................................... 0 Hz
SmartCrft Sea Temp................................. 32.0 F
SmartCrft Depth..................................... 0.0 ft
Engine Location............................... Starboard
Misfire Percent..................................... 0.0 %
Misfire Cyl 1......................................... 0 #
Misfire Cyl 2......................................... 0 #
Misfire Cyl 3......................................... 0 #
Misfire Cyl 4......................................... 0 #
Misfire Cyl 5......................................... 0 #
Misfire Cyl 6......................................... 0 #
Misfire Cyl 7......................................... 0 #
Misfire Cyl 8......................................... 0 #
Inj 1 On-Time....................................... 4.5 ms
Inj 2 On-Time....................................... 4.4 ms

Inj 3 On-Time....................................... 4.4 ms
Inj 4 On-Time....................................... 4.4 ms
Inj 5 On-Time....................................... 4.4 ms
Inj 6 On-Time....................................... 4.3 ms
Inj 7 On-Time....................................... 4.5 ms
Inj 8 On-Time....................................... 4.4 ms
Knock Retard Cyl 1.................................. 0.0 deg
Knock Retard Cyl 2.................................. 0.0 deg
Knock Retard Cyl 3.................................. 0.0 deg
Knock Retard Cyl 4.................................. 0.0 deg
Knock Retard Cyl 5.................................. 0.0 deg
Knock Retard Cyl 6.................................. 0.0 deg
Knock Retard Cyl 7.................................. 0.0 deg
Knock Retard Cyl 8.................................. 0.0 deg
O2 Control State.............................. Open Loop
O2 Sensor-A ADC..................................... 48 #
O2 Sensor-B ADC..................................... 51 #
O2 Sensor-C ADC..................................... 50 #
O2 Sensor-D ADC..................................... 48 #
Fuel Trim Port...................................... 0.0 %
O2 Bias Port........................................ 0.0 %
Fuel Trim Stbd...................................... 0.0 %
O2 Bias Stbd........................................ 0.0 %
PO2S Disable Reason............................ PID Time
O2SR Disable Reason.......................... Enable Cal
O2SR Disable Rsn Port.............................. None
O2SR Disable Rsn Stbd.............................. None
O2 Switch Ratio Port............................... 1.00 #
O2 Switch Ratio Stbd............................... 1.00 #
CATM Disable Reason......................... Diag Checks
CATM Status Port............................... Disabled
CATM Status Stbd............................... Disabled
O2 Lean Resp Port................................... 0.0 sec
O2 Rich Resp Port................................... 0.0 sec
O2 Lean Resp Stbd................................... 0.0 sec
O2 Rich Resp Stbd................................... 0.0 sec
OSC Index EWMA Port................................ 1.00 #
OSC Raw Port....................................... 0.00 mg
OSC Index EWMA Stbd................................ 1.00 #
OSC Raw Stbd....................................... 0.00 mg
O2 Adapt Cell-1 Port.............................. 0.00 #
O2 Adapt Cell-2 Port.............................. 0.00 #
O2 Adapt Cell-3 Port.............................. 0.00 #
O2 Adapt Cell-4 Port.............................. 0.00 #
O2 Adapt Cell-5 Port.............................. 0.00 #
O2 Adapt Cell-6 Port.............................. 0.00 #
O2 Adapt Cell-7 Port.............................. 0.00 #
O2 Adapt Cell-8 Port.............................. 0.00 #
O2 Adapt Cell-9 Port.............................. 0.00 #
O2 Adapt Cell-1 Stbd.............................. 0.00 #
O2 Adapt Cell-2 Stbd.............................. 0.00 #
O2 Adapt Cell-3 Stbd.............................. 0.00 #
O2 Adapt Cell-4 Stbd.............................. 0.00 #
O2 Adapt Cell-5 Stbd.............................. 0.00 #
O2 Adapt Cell-6 Stbd.............................. 0.00 #
O2 Adapt Cell-7 Stbd.............................. 0.00 #
O2 Adapt Cell-8 Stbd.............................. 0.00 #
O2 Adapt Cell-9 Stbd.............................. 0.00 #
Operating Hours................................... 164.1 hrs

3. TROUBLE CODE STATUS
Current ECM Codes
No Fault Codes Found
********************************* Freeze Frame Data

***********************************
Freeze Frame 0

......................................................................
MERCURY FAULT NAME FAULT DESCRIPTION
RxDoc3_SOH CAN Bus Fault Type 3 - Check CAN P Bus
.......................................................................................

Fault Number 103 #
Battery Volts 12.6 vdc
Engine Speed 0 rpm
Engine State Stall
Fault Freq Count 4 #
Gear Position Neutral
Load Percent 7.8 %
Run Time 163.8 hrs
Oil Pressure 0.6 psi
Coolant Temp 52.0 F
Stbd EMCT Sensor 54.7 F
Port EMCT Sensor 55.9 F
Sea Pump Pressure 0.4 psi
Demand 10 %
Throttle Position 10 %
IAC Duty Cycle 10.0 %
O2 Control State Open Loop
Trim Position 643 %
Knock Output 0.0 deg
Power Limit 0 %
Spark Advance -5.0 deg
MAP Angle 28.8 inHg
Freeze Frame 1

......................................................................
MERCURY FAULT NAME FAULT DESCRIPTION
RxDoc7_SOH CAN Bus Fault Type 7 - Trim Control Data

Missing
.......................................................................................

Fault Number 186 #
Battery Volts 12.6 vdc
Engine Speed 0 rpm
Engine State Stall
Fault Freq Count 6 #
Gear Position Neutral
Load Percent 7.8 %
Run Time 163.8 hrs
Oil Pressure 0.6 psi
Coolant Temp 52.0 F
Stbd EMCT Sensor 54.7 F
Port EMCT Sensor 55.9 F
Sea Pump Pressure 0.5 psi
Demand 10 %
Throttle Position 10 %
IAC Duty Cycle 10.0 %
O2 Control State Open Loop
Trim Position 643 %
Knock Output 0.0 deg
Power Limit 0 %
Spark Advance -5.0 deg
MAP Angle 28.8 inHg
Freeze Frame 2

......................................................................
MERCURY FAULT NAME FAULT DESCRIPTION

Dual_CAN_SOH_Faults CAN Fault: Both CAN P and CAN X Faulting
.......................................................................................

Fault Number 150 #
Battery Volts 12.6 vdc
Engine Speed 0 rpm
Engine State Stall
Fault Freq Count 4 #
Gear Position Neutral
Load Percent 7.8 %
Run Time 163.8 hrs
Oil Pressure 0.6 psi
Coolant Temp 52.0 F
Stbd EMCT Sensor 53.4 F
Port EMCT Sensor 55.9 F
Sea Pump Pressure 0.4 psi
Demand 10 %
Throttle Position 10 %
IAC Duty Cycle 10.0 %
O2 Control State Open Loop
Trim Position 643 %
Knock Output 0.0 deg
Power Limit 0 %
Spark Advance -5.0 deg
MAP Angle 28.8 inHg
Freeze Frame 3

......................................................................
MERCURY FAULT NAME FAULT DESCRIPTION
AuthTimeout CAN fault: PCM failed to authenticate

within specified time
.......................................................................................

Fault Number 387 #
Battery Volts 12.3 vdc
Engine Speed 0 rpm
Engine State Stall
Fault Freq Count 7 #
Gear Position Neutral
Load Percent 7.8 %
Run Time 163.8 hrs
Oil Pressure 0.6 psi
Coolant Temp 52.0 F
Stbd EMCT Sensor 54.7 F
Port EMCT Sensor 55.9 F
Sea Pump Pressure 0.4 psi
Demand 10 %
Throttle Position 10 %
IAC Duty Cycle 10.0 %
O2 Control State Open Loop
Trim Position 643 %
Knock Output 0.0 deg
Power Limit 0 %
Spark Advance -5.0 deg
MAP Angle 28.8 inHg
Freeze Frame 4

......................................................................
MERCURY FAULT NAME FAULT DESCRIPTION
RxDoc1_SOH CAN Bus Fault Type 1 - Check CAN X Bus
.......................................................................................

Fault Number 101 #
Battery Volts 12.3 vdc
Engine Speed 0 rpm
Engine State Stall
Fault Freq Count 7 #
Gear Position Neutral
Load Percent 7.8 %
Run Time 163.8 hrs
Oil Pressure 0.6 psi
Coolant Temp 52.0 F
Stbd EMCT Sensor 54.7 F
Port EMCT Sensor 55.9 F
Sea Pump Pressure 0.5 psi
Demand 10 %
Throttle Position 10 %
IAC Duty Cycle 10.0 %
O2 Control State Open Loop
Trim Position 643 %
Knock Output 0.0 deg
Power Limit 0 %
Spark Advance -5.0 deg
MAP Angle 28.8 inHg
Freeze Frame 5

......................................................................
MERCURY FAULT NAME FAULT DESCRIPTION
SeaPumpPress_Low Sea Pump Pressure Low

.......................................................................................

Fault Number 3 #
Battery Volts 14.7 vdc
Engine Speed 753 rpm
Engine State Run
Fault Freq Count 3 #
Gear Position Neutral
Load Percent 27.6 %
Run Time 163.8 hrs
Oil Pressure 62.1 psi
Coolant Temp 53.4 F
Stbd EMCT Sensor 57.2 F
Port EMCT Sensor 57.8 F
Sea Pump Pressure 0.3 psi
Demand 26 %
Throttle Position 10 %
IAC Duty Cycle 0.0 %
O2 Control State Open Loop
Trim Position 240 %
Knock Output 0.0 deg
Power Limit 100 %
Spark Advance -3.0 deg
MAP Angle 18.4 inHg
Freeze Frame 6

......................................................................
MERCURY FAULT NAME FAULT DESCRIPTION
SmartStartAbort SmartStart Aborted - No RPM Detected
.......................................................................................

Fault Number 212 #
Battery Volts 0.0 vdc
Engine Speed 0 rpm
Engine State Stall
Fault Freq Count 2 #
Gear Position Neutral

Load Percent 7.8 %
Run Time 141.6 hrs
Oil Pressure 0.5 psi
Coolant Temp 174.8 F
Stbd EMCT Sensor 128.1 F
Port EMCT Sensor 133.5 F
Sea Pump Pressure 0.0 psi
Demand 10 %
Throttle Position 10 %
IAC Duty Cycle 10.0 %
O2 Control State Open Loop
Trim Position 352 %
Knock Output 0.0 deg
Power Limit 100 %
Spark Advance -5.0 deg
MAP Angle 28.7 inHg
Freeze Frame 7

......................................................................
MERCURY FAULT NAME FAULT DESCRIPTION
Guardian_Active Guardian Active: Check Other Faults for

Cause
.......................................................................................

Fault Number 9 #
Battery Volts 14.1 vdc
Engine Speed 110 rpm
Engine State Stall
Fault Freq Count 3 #
Gear Position Neutral
Load Percent 59.4 %
Run Time 118.1 hrs
Oil Pressure 61.7 psi
Coolant Temp 69.5 F
Stbd EMCT Sensor 70.1 F
Port EMCT Sensor 72.7 F
Sea Pump Pressure 0.0 psi
Demand 50 %
Throttle Position 21 %
IAC Duty Cycle 70.0 %
O2 Control State Open Loop
Trim Position 205 %
Knock Output 0.0 deg
Power Limit 5 %
Spark Advance 24.0 deg
MAP Angle 27.6 inHg
Freeze Frame 8

......................................................................
MERCURY FAULT NAME FAULT DESCRIPTION
Guardian_Overspeed Engine RPM exceeded limit set by Guardian
.......................................................................................

Fault Number 19 #
Battery Volts 14.4 vdc
Engine Speed 5219 rpm
Engine State Run
Fault Freq Count 1 #
Gear Position Reverse
Load Percent 84.2 %
Run Time 141.6 hrs
Oil Pressure 75.8 psi
Coolant Temp 167.8 F
Stbd EMCT Sensor 103.0 F

Port EMCT Sensor 120.4 F
Sea Pump Pressure 17.0 psi
Demand 100 %
Throttle Position 99 %
IAC Duty Cycle 0.0 %
O2 Control State Open Loop
Trim Position 532 %
Knock Output 0.0 deg
Power Limit 100 %
Spark Advance 24.0 deg
MAP Angle 28.0 inHg
Freeze Frame 9

......................................................................
MERCURY FAULT NAME FAULT DESCRIPTION
Guardian_uXPowerLimit Guardian Active due to faults in DTS

Command Module
.......................................................................................

Fault Number 323 #
Battery Volts 12.3 vdc
Engine Speed 0 rpm
Engine State Stall
Fault Freq Count 8 #
Gear Position Neutral
Load Percent 7.8 %
Run Time 163.8 hrs
Oil Pressure 0.6 psi
Coolant Temp 52.0 F
Stbd EMCT Sensor 54.7 F
Port EMCT Sensor 55.9 F
Sea Pump Pressure 0.4 psi
Demand 10 %
Throttle Position 10 %
IAC Duty Cycle 10.0 %
O2 Control State Open Loop
Trim Position 643 %
Knock Output 0.0 deg
Power Limit 0 %
Spark Advance -5.0 deg
MAP Angle 28.8 inHg

[cmattj]

The “over speed” can happen over 5150rpm if a prop slip over trim etc. no biggie

Sea pump at .03 is slightly below threshold at idle. Older impeller can create less pressure at idle.
Change the impeller as you don’t have Exhaust errors and temp codes so that at least an easy one.

Those others that say missing etc are just systems looking for sensors not hooked up as options remain but can’t be deleted.

All good pal. Impeller.. make sure there is no scoring in the pump and have fun!

[akorcovelos]

8 fault codes on a boat with 160 hours?

[jasondon]

Thanks cmattj that is basically what the mechanic said but I wanted to make sure. Impeller will be getting replaced. Thank you for your reply, greatly appreciated

AK: they apparently tried starting it with something unhooked so it was throwing codes.... This happened at summerization service.

[AsLan7]

Yup, I agree with matt. Change impeller. Rest of the data looks good. That engine has been babied.

[jasondon]

Thanks Aslan.

So it looks like idle is set to 1100, and it says 50 hours were at 0-699rpm, is that time that the ignition was on but the engine wasn't actually running?

[Big Block Power]

Idle im sure is around 650 rpm. It was ran above that for some reason. 1100 can not be the idle speed. Maybe no wake speed.

[Bfun220]

Could the 1100 be a cold start rpm ?

[jasondon]

That's my guess, even though I asked to have it done at operating Temp.

[NautiGirl]

Wow the dude never cracked her open. Let Katie drive that darn boat!!

Let me have at it! It's got enough HP for me so I'm in!