hi there well after reconnecting my egr plug my check engine light wont go out . obd2 connection tool states the error code is for infrequent regen icycles .? how the hell do i make it go away ? ive cleared teh code driven hundreds of miles and it keeps coming back ? error code is p25b if i rememeber right ?

 

need exact code to look it up for you but most likely, you will need to clean the EGR as its stuck

 

I'll get the exact code I removed the egr gave it a nice bath removed the solienoid .reinstalled and still nothing .

 

ok the code is p245b dpf regen frequency .

 

Bypass Valve, EGR
Part Numbers:
68038942A$
68026992A$
Issue Description:
Prior to replacing the EGR Bypass Valve on a 2010 6.7L Cummins diesel engine for a P245B fault code, please verify the fault is repeatable. An issue has been identified in extreme cold weather conditions that can cause the valve to momentarily freeze/bind and trigger this fault. To determine if the valve should be replaced, please perform the following: Bring the vehicle up to normal operating temperature and leave running. Next, to completely clear the P245B fault, power down the vehicle for 1 min, turn key back on, wait one 1 min and clear P245B fault code. Finally, using a scan tool test drive the vehicle to verify that P245B does not reappear as a pending fault. If the fault does not return, the issue is being caused by the cold weather stick/bind issue described above. If the condition repeats after the engine has been warmed sufficiently, then the bypass valve will need to be replaced. A fix for this momentary binding issue will be in the next calibration software release, tentatively expected in late March 2010.


2009 Ram 2500/3500 with a 6.7L Cummins Turbo diesel: Before replacing the EGR Bypass Valve for a P245A fault code, please verify that the ECM calibration has been updated to the latest level. There has been an issue identified with prior calibrations that may cause this fault to set erroneously if the vehicle has had a low battery voltage condition or been operated in extremely cold temperatures. Replace the Bypass Valve only if the fault continues to occur after updating the ECM and the appropriate diagnostics have been performed.


The "valve spring" on the EGR bypass valve is used only during plant assembly and does not affect actual valve operation. Please do not replace an EGR bypass valve if you find this installation spring to be broken - simply remove the remaining pieces of the spring to avoid customer confusion.

THIS BULLETIN SUPERSEDES SERVICE BULLETIN 18-004-11, DATED JANUARY 19,
2011 WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE
HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE A DIFFERENT LABOR
OPERATION NUMBER (LOP).
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS
AVAILABLE BY SELECTING “HELP” THEN “HELP CONTENTS” AT THE TOP OF
THE wiTECH DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 11.02 OR HIGHER TO
PERFORM THIS PROCEDURE.
SUBJECT:
Flash: Diagnostic and System Improvements
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Engine Control Module
(ECM) with new software.
MODELS:
2010 (DJ) Ram Pick Up (2500)
2010 (D2) Ram Pick Up (3500)
NOTE: This bulletin applies to vehicles equipped with a 6.7L Cummins engine (Sales
code ETJ).
SYMPTOM/CONDITION:
Pick up trucks equipped with a 6.7L Cummins diesel have a number of software
improvements/enhancements available. This SB will include improved robustness
for DTC's:
· P046C-EGR POSITION SENSOR PERFORMANCE
· P051B-CRANKCASE PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE
· P0101-MASS AIR FLOW SENSOR "A" CIRCUIT PERFORMANCE
· P2002-DIESEL PARTICULATE FILTER EFFICIENCY BELOW THRESHOLD
· P2196-O2 SENSOR 1/1 OUT OF RANGE LOW
· P245B - EGR COOLER BYPASS STATUS LINE INTERMITTENT
· P2262-TURBOCHARGER BOOST PRESSURE NOT DETECTED - MECHANICAL
· P2271-O2 SENSOR 1/2 OUT OF RANGE LOW
NUMBER: 18-004-11 REV. A
GROUP: Vehicle Performance
DATE: February 18, 2011
NOTE: Vehicles flashed to address the above codes should be driven and repair
validated. If code(s) return, follow diagnostic procedures available in
DealerCONNECT/TechCONNECT.
Improvements other than DTC robustness or enhancements:
· Witech Turbo hysteresis test improvements
· Scan tool reporting fixes.
· Stationary regeneration improvements
· Other driveability enhancements
DIAGNOSIS:
Using a Scan Tool with the appropriate Diagnostic Procedures available in
TechCONNECT, verify all engine systems are functioning as designed. If DTC's are
present record them on the repair order and repair as necessary before proceeding further
with this bulletin.
If the above condition is present, perform the Repair Procedure.
PARTS REQUIRED:
Qty. Part No. Description
1 04275086AB Label, Authorized Modification
REPAIR PROCEDURE:
NOTE: Help using the wiTECH diagnostic application for flashing an ECU is
available by selecting “Help” then “Help Contents” at the top of the wiTECH
diagnostic application window.
NOTE: The wiTECH software level must be at release 11.02 or higher to perform this
procedure.
NOTE: WiTECH may erroneously give an error message at the conclusion of the
download stating the that the flash was not successful. If there is an error
message after the flash has completed, first confirm that the DTC U1601 is
not present and that the P/N has been updated. If so, start the engine to
confirm the flash was successful. If DTC U1601 is present, OR the P/N did not
update, OR the engine did not start, the flash may have been unsuccessful.
Restart the flash update.
1. Reprogram the ECM with the latest software. Follow the detailed service procedures
available in DealerCONNECT/TechCONNECT, Refer To Group 8 - Electrical > 8E -
Electronic Control Modules > MODULE, Engine Control, Diesel > Standard Procedure
> PCM/ECM Programming - DIESEL. After PCM reprogramming, the following
must be performed:
a. Power down the PCM (key off) after flash. Automatic Transmission equipped trucks
must have key off for 10 minutes. Manual Transmission trucks must have key off for
75 seconds.
18-004-11 REV. A -2-
b. Perform a Quicklearn procedure on Automatic Transmission equipped trucks.
Follow the detailed service procedures available in
DealerCONNECT/TechCONNECT, Refer To Group 28 - DTC-Based Diagnostics >
MODULE, Powertrain Control (PCM), 6.7L Diesel > Standard Procedure >
PCM/ECM / TCM PROGRAMMING > Quicklearn.
c. Clear any DTC's that may have been set in other modules due to reprogramming.
The wiTECH application will automatically present all DTC's after the flash and
allow the tech to clear them.
2. Type the necessary information on the “Authorized Modification Label” and attach it
near the VECI label

 

THIS BULLETIN SUPERSEDES SERVICE BULLETIN 18-004-11, DATED JANUARY 19,
2011 WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE
HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE A DIFFERENT LABOR
OPERATION NUMBER (LOP).
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS
AVAILABLE BY SELECTING “HELP” THEN “HELP CONTENTS” AT THE TOP OF
THE wiTECH DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 11.02 OR HIGHER TO
PERFORM THIS PROCEDURE.
SUBJECT:
Flash: Diagnostic and System Improvements
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Engine Control Module
(ECM) with new software.
MODELS:
2010 (DJ) Ram Pick Up (2500)
2010 (D2) Ram Pick Up (3500)
NOTE: This bulletin applies to vehicles equipped with a 6.7L Cummins engine (Sales
code ETJ).
SYMPTOM/CONDITION:
Pick up trucks equipped with a 6.7L Cummins diesel have a number of software
improvements/enhancements available. This SB will include improved robustness
for DTC's:
· P046C-EGR POSITION SENSOR PERFORMANCE
· P051B-CRANKCASE PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE
· P0101-MASS AIR FLOW SENSOR "A" CIRCUIT PERFORMANCE
· P2002-DIESEL PARTICULATE FILTER EFFICIENCY BELOW THRESHOLD
· P2196-O2 SENSOR 1/1 OUT OF RANGE LOW
· P245B - EGR COOLER BYPASS STATUS LINE INTERMITTENT
· P2262-TURBOCHARGER BOOST PRESSURE NOT DETECTED - MECHANICAL
· P2271-O2 SENSOR 1/2 OUT OF RANGE LOW
NUMBER: 18-004-11 REV. A
GROUP: Vehicle Performance
DATE: February 18, 2011
NOTE: Vehicles flashed to address the above codes should be driven and repair
validated. If code(s) return, follow diagnostic procedures available in
DealerCONNECT/TechCONNECT.
Improvements other than DTC robustness or enhancements:
· Witech Turbo hysteresis test improvements
· Scan tool reporting fixes.
· Stationary regeneration improvements
· Other driveability enhancements
DIAGNOSIS:
Using a Scan Tool with the appropriate Diagnostic Procedures available in
TechCONNECT, verify all engine systems are functioning as designed. If DTC's are
present record them on the repair order and repair as necessary before proceeding further
with this bulletin.
If the above condition is present, perform the Repair Procedure.
PARTS REQUIRED:
Qty. Part No. Description
1 04275086AB Label, Authorized Modification
REPAIR PROCEDURE:
NOTE: Help using the wiTECH diagnostic application for flashing an ECU is
available by selecting “Help” then “Help Contents” at the top of the wiTECH
diagnostic application window.
NOTE: The wiTECH software level must be at release 11.02 or higher to perform this
procedure.
NOTE: WiTECH may erroneously give an error message at the conclusion of the
download stating the that the flash was not successful. If there is an error
message after the flash has completed, first confirm that the DTC U1601 is
not present and that the P/N has been updated. If so, start the engine to
confirm the flash was successful. If DTC U1601 is present, OR the P/N did not
update, OR the engine did not start, the flash may have been unsuccessful.
Restart the flash update.
1. Reprogram the ECM with the latest software. Follow the detailed service procedures
available in DealerCONNECT/TechCONNECT, Refer To Group 8 - Electrical > 8E -
Electronic Control Modules > MODULE, Engine Control, Diesel > Standard Procedure
> PCM/ECM Programming - DIESEL. After PCM reprogramming, the following
must be performed:
a. Power down the PCM (key off) after flash. Automatic Transmission equipped trucks
must have key off for 10 minutes. Manual Transmission trucks must have key off for
75 seconds.
18-004-11 REV. A -2-
b. Perform a Quicklearn procedure on Automatic Transmission equipped trucks.
Follow the detailed service procedures available in
DealerCONNECT/TechCONNECT, Refer To Group 28 - DTC-Based Diagnostics >
MODULE, Powertrain Control (PCM), 6.7L Diesel > Standard Procedure >
PCM/ECM / TCM PROGRAMMING > Quicklearn.
c. Clear any DTC's that may have been set in other modules due to reprogramming.
The wiTECH application will automatically present all DTC's after the flash and
allow the tech to clear them.
2. Type the necessary information on the “Authorized Modification Label” and attach it
near the VECI label.

 

well i must say thanks in a big way i hope you didnt type that all out ? my apointment was this morning and truck is at the dealer and now a problem or the dealer . i wanna thanks you again .i hope someone else may benefit from this info. oddly the servo did have the spring in it