841807 Mercruiser O-RING, (3.500 x .103)

Table 1
Diagnostic Trouble Codes    
CDL Code    J1939 Code    Code Description    Comments    
E1050 (1)     3480-15     High Aftertreatment #1 Fuel Pressure #1     There are Enhanced Troubleshooting Indicators for this code.    
E1050 (2)     3480-16     High Aftertreatment #1 Fuel Pressure #1     There are not Enhanced Troubleshooting Indicators for this code.    
Table 2
Required Parts for Use with a 11/16 Fitting    
8T-0855 Pressure Gauge    
8T-8902 Tee    
228-7089 O-Ring Seal (Tee)    
6V-4144 Quick Connect Coupler    
6V-3965 Fitting    
3J-1907 O-Ring Seal    
Required Parts for Use with a 9/16 Fitting    
7X-2444 Swivel Tee    
214-7568 O-Ring Seal (Tee)    
6V-3965 Fitting    
3J-1907 O-Ring Seal    
8T-0855 Pressure Gauge    
6V-4144 Quick Connect Coupler    
Optional Parts    
177-7860 Hose As    
177-7861 Hose As    
177-7862 Hose As    
126-6872 9/16 Tee    
8C-3309 11/16 Tee    
Table 3
Troubleshooting Test Steps    Values    Results    
1. Check the Current Flow to the Heating Element in the ARD Combustion Head
A. Start the engine. Check the current flow to the heater. Refer to Systems Operation/Testing and Adjusting, "ARD Nozzle Heater - Test" for the correct procedure.
   
Current check
   
Result : The current flow is between 7.0 A and 14 A for a 12 V system. Or, the current flow is between 3.5 A and 7 A for a 24 V system.
The current flow is OK. Proceed to Test Step 2.
Result : The current flow is not between 7.0 A and 14 A for a 12 V system. Or, the current flow is not between 3.5 A and 7 A for a 24 V system.
Repair : There may be a problem with the ARD nozzle. Refer to Troubleshooting, "ARD Nozzle Heater - Test".
STOP
   
2. Perform an ARD Ignition Test and Record the Enhanced Troubleshooting Indicator (ETI)
A. Establish communication between the electronic service tool and the Electronic Control Module (ECM). Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Perform an ARD Ignition Test using the electronic service tool. Refer to System Operation and Testing and Adjusting, "ARD Fuel System - Test".
C. The ETI code is located in the "Status" screen under "Enhanced Troubleshooting Information (ETI) - ARD". Record the Enhanced Troubleshooting Indicator (ETI) code.
ETI codes are not available for (2) codes.
   
ETI code
   
Result : There is not an ETI code.
Proceed to Test Step 3.
Result : The ETI code was recorded.
Proceed to Test Step 3.
   
Illustration 1 g01985893
Aftertreatment Regeneration Device (ARD) Fuel Pump (1) Electrical connector (2) Fuel outlet (3) Fuel return to tank (4) Fuel inlet (5) Fuel inlet (alternative) (6) Fuel inlet (alternative)
Table 4
Troubleshooting Test Steps    Values    Results    
3. Check the Pump
A. Turn the engine "OFF".
B. Disconnect the fuel outlet line (2) from the ARD fuel pump. Refer to Illustration 1.
C. Install the applicable tools that are listed in Table 2 to the outlet port of the pump.
D. Connect the fuel outlet line (2) to the swivel tee.
E. Start the engine.
F. Clear the active event code or the override will not activate.
G. Select the "Aftertreatment Fuel Pump Relay Override" in the electronic service tool in order to activate the pump.
H. Override the pump and record the pressure from the pressure gauge.
I. Deactivate the override.
F. Turn the keyswitch to the OFF position.
G. The pressure must be within specifications. The pump pressure must be 1900 120 kPa (275.5 17.4 psi).
   
Pump Checkout
   
Result : The pressure measured greater than
1900 120 kPa (275 17.4 psi).
Repair : Replace the pressure regulator. Perform an "ARD Ignition Test" using the electronic service tool. Refer to System Operation and Testing and Adjusting , "ARD Fuel System - Test".
The ARD Ignition Test cannot be performed if the DPF soot loading is above 80%. When the DPF soot loading is above 80%, the Manual DPF Regeneration must be performed using the electronic service tool.
Result : The pump is within specifications.
If you are troubleshooting an E1050 (1) code with an ETI of 5 or 6, Proceed to Test Step 4.
Result : The pump is within specifications.
If you are troubleshooting an E1050 (1) code with an ETI of 1 or an E1050 (2), Proceed to Test Step 5.
Result : The pump is within specifications.
ETI codes are not available for (2) codes.
   
Illustration 2 g03017616
Measuring the current flow (7) Pilot filter connector (8) ARD combustion head (9) Metal part of heater wire (10) Insulated part of heater wire
Table 5
Troubleshooting Test Steps    Values    Results    
4. Replace the Fittings that Contain the Filter in the ARD Head
A. Replace the fittings that contain the filters in the ARD head.
B. Reset all active codes and clear all logged codes by cycling the keyswitch to the OFF position.
C. Perform the "ARD Ignition Test" using the electronic service tool. Refer to System Operation and Testing and Adjusting , "ARD Fuel System - Test".
   
Replace filter fittings
   
Result : The "ARD Ignition Test" was successful and no codes were logged.
Return the unit to service.
STOP
Result : The "ARD Ignition Test" was not successful and codes were logged.