have a 2008 ram 3500 6.7 l diesel and already experiencing problems
1 regeneration....resolved
2 bank 1 sensor 2 replacement
3 now i have a p0242f can anybody help me out?
p0242 looks like turbo boost sensor b circuit high ?
not a good start i say

 

Welcome Aboard littlesmurf! Stay tuned - a Technician (or member) will jump in shortly to provide a possible solution. In the meantime, don't forget to browse Sub-Forums: Cummins Diesel for stuff related to your ride.

 

thanks for replying, would like to think my 3500 is not going to be a money pit.
am looking forward to travel with my 5th wheel trailer in the coming year.

 

Don't forget to upload a picture of your ride with the 5th wheeler!

 

you bet, hopefully the dodge pulls through. will be heading for the dealer soon.

 

Welcome to DF
Here is some information, for the P242F code. But I would take it into the dealer.
28 - DTC-Based Diagnostics/MODULE, Engine Control (ECM), 6.7L/Diagnosis and Testing
P242F-DIESEL PARTICULATE FILTER RESTRICTION - ASH ACCUMULATION
For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation
The engine aftertreatment system monitors the soot load in the Diesel Particulate Filter. Under normal operating conditions, the Diesel Particulate Filter is self-cleaning, where soot is converted to ash. Under light load operating conditions, the driver may be notified via the vehicle's EVIC message center that it may be necessary to modify the vehicles driving routine in order to allow the Diesel Particulate Filter system to self clean. If the vehicle's EVIC message center notification is ignored, the vehicle will eventually de-rate the engine and set a DTC and MIL lamp, requiring service. The soot load in the Diesel Particulate Filter is estimated using the Exhaust Differential Pressure Sensor and the calculated soot output of the engine. This fault code can be triggered if the application is not operating at a duty cycle high enough to actively regenerate the Diesel Particulate Filter. It may be necessary to increase the duty cycle of the application in order to prevent plugging of the Diesel Particulate Filter. This fault will be triggered if the Engine Control Module (ECM) detects that the soot load of the Diesel Particulate Filter has surpassed the most severe level threshold. The ECM will illuminate the MIL lamp immediately when the diagnostic runs and fails. The driver will be notified via the vehicle's EVIC Message Center. The ECM will also initiate a de-rate of engine power output in an effort to protect the vehicle aftertreatment system. The ECM will turn off the MIL lamp immediately after the soot load in the aftertreatment Diesel Particulate Filter has dropped below the severe level threshold and the DTC has been cleared.

When Monitored:
The diagnostic runs continuously when the engine is running.

Set Condition:
The Engine Control Module (ECM) detects that the soot load of the Diesel Particulate Filter has surpassed the most severe level threshold.


Possible Causes
PROGRESSIVE DAMAGE TO THE AFTERTREATMENT SYSTEM FROM AN ENGINE FAILURE, INCLUDING BUT NOT LIMITED TO EXCESSIVE FUEL, OIL OR COOLANT IN THE AFTERTREATMENT SYSTEM MAY CONTRIBUTE TO A HIGH PRESSURE RELATED FAULT.
FUEL DELIVERY SYSTEM PROBLEMS
DIESEL PARTICULATE FILTER COULD BE PLUGGED WITH ACCUMULATED ASH.
OPERATING IN LIGHT LOAD CONDITIONS THAT PREVENT EXHAUST TEMPERATURES FROM BEING HIGH ENOUGH TO ACTIVELY REGENERATE THE AFTERTREATMENT PARTICULATE FILTER.
TEMPERATURE SENSOR(S) FAILED IN-RANGE

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTC-Based Diagnostics/MODULE, Engine Control (ECM) - Standard Procedure).



1.INSPECT THE AFTERTREATMENT SYSTEM


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NOTE: If there are any DTCs present for the Exhaust Temperature Sensors or Exhaust Differential Pressure Sensor, diagnose those DTCs before proceeding with this test procedure.

NOTE: DTC P242F is usually the result of a driveability or fuel system failure. This DTC indicates that the Diesel Particulate Filter may either be face plugged or filled with ash. If there are any other DTCs or driveability concerns present with this DTC, diagnose and repair those concerns before continuing with this test procedure. Not repairing the cause of the excess soot being generated will cause the Diesel Particulate Filter to fill with soot too often and fail prematurely.
1. Perform the AFTERTREATMENT INSPECTION GUIDELINE - 6.7L procedure. (Refer to 29 - Non-DTC Diagnostics/Drivability - Diesel - Diagnosis and Testing) .


Was any internal damage found in the Diesel Particulate Filter?

Yes

Replace the Diesel Particulate Filter and reset the regenerative timers with the scan tool. Remove and clean the EGR Valve. (Refer to 25 - Emissions Control/Exhaust Gas Recirculation/VALVE, Exhaust Gas Recirculation (EGR) - Cleaning). Perform the CHECKING ENGINE MISFIRE / RUNS ROUGH / PERFORMANCE test procedure. (Refer to 29 - Non-DTC Diagnostics/Drivability - Diesel - Diagnosis and Testing) .
Perform the DIESEL AFTERTREATMENT VALIDATION - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Engine Control (ECM) - Standard Procedure).

No

Go To 2



2.VERIFY THE ESTIMATED SOOT LOAD


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1. Ignition on, engine not running.
2. With the scan tool, navigate to Data Display and read the Estimated Soot Load.


Is the Estimated Soot Load Based on Delta Pressure above 47.0 grams (pick-up) 57.0 grams (cab chassis)?

Yes

Go To 3

No

Erase DTCs and reset the regenerative timers with the scan tool.
Perform the DIESEL AFTERTREATMENT VALIDATION - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Engine Control (ECM) - Standard Procedure).



3.CHECK FOR THE ESTIMATED SOOT LOAD ABOVE MAX SOOT LOAD


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1. Ignition on, engine not running.
2. With the scan tool, navigate to Data Display and read the Estimated Soot Load.


Is the Estimated Soot Load Based on Delta Pressure above 75.0 grams (pick-up) 92.0 grams (cab chassis)?

Yes

Replace the Diesel Particulate Filter.
Perform the DIESEL AFTERTREATMENT VALIDATION - 6.7L. (Refer to 28 - DTC-Based Diagnostics/MODULE, Engine Control (ECM) - Standard Procedure).

No

Go To 4



4.STATIONERY REGENERATION


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1. With the scan tool, erase DTCs, reset regenerative filter timers, and drive vehicle until P1451 resets (this will allow you to perform a stationary Desoot).


NOTE: The vehicle will not allow the Stationery Desoot to run if the P242F DTC sets. For this reason, test drive the vehicle as close to the shop as possible in order to get back to the shop before the P242F DTC can set.
2. Perform the scan tool initiated Stationary Desoot.
3. After the Stationary Desoot is completed, erase the DTCs with the scan tool.
4. Perform the DIESEL AFTERTREATMENT VALIDATION.

 

thanks a lot master tech,had a conversation with a tech here in collingwood ontario canada
and they confirmed the same thing. if the particulate filter is full i think maybe i should take it out and clean it ,once maybe every two years ?. ive only had the truck 3-4 months. the owner before me just drove to florida and back with 5th wheel trailer attached, never mentioned any regeneration proceedures but was told to keep engine brake switched on to help clean out exhaust. im only now finding out the pro,s and con,s of this truck.at the dealership on thursday , will find out more.
note: im a tech also with import experience .have worked for ford and gmc but love........the dodge truck line-up.hoping to get out of the flat-rate tech line. it has been to many years.again thanks