Derate to 5mph crisis - regen not clearing codes for some reason

pm sent

 

For low conversion ,bad def quality and blinking yellow def light .....
CHANGE OUTLET NOX SENSER FIRST THEN OTHER PARTS IF U STILL NEED...U WILL SAVE MONEY FOR SURE...

 

CHANGE OUTLET NOX SENSOR NOT ONE BOX

 

ON 2012 CASCADIA IT TOOK AROUND 6 MONTHS TO BAD OUTLET SENSOR CODE POP ON DASH . MAY BE ITS NOT FAILING COMPLETELY OR WHEM IT FAIL IT SUSPECT ON UR DEF QUALITY FIRST ......EVERTHING STARTED WITH BAD QUALITY AND LOW COVERSION AND CHANGING PARTS .SOME SAYS I NEED ONE BOX I FLUSH MY TANK AND FILLED WITH BOX DEF FLUID AND MY BAD QULITY GONE BUT LOW CONVERSION STILL THERE AND I DRIVE 6 MONTHS WITH LOW CONVERSION CODE ONLY ...IN BETWEEN I TRIED 3 TIMES TO FILL BULK DEF FROM PUMPS AND BAD QUALITY POPS EVERTIME .THEN FLUSH BACK AND PUT BOX FLUID IN .
AFTER DRIVIING 3 MONTHS ON BOX FLUID BAD OUTLET NOX SENSOR CODES POP UP AND I CHANGE .ALL IS GOOD AFTER THAT DRIVING SINCE 4 MONTHS...ON BULK DEF FLUID

 

ON 2012 CASCADIA IT TOOK AROUND 6 MONTHS TO BAD OUTLET SENSOR CODE POP ON DASH . MAY BE ITS NOT FAILING COMPLETELY OR WHEM IT FAIL IT SUSPECT ON UR DEF QUALITY FIRST ......EVERTHING STARTED WITH BAD QUALITY AND LOW COVERSION AND CHANGING PARTS .SOME SAYS I NEED ONE BOX I FLUSH MY TANK AND FILLED WITH BOX DEF FLUID AND MY BAD QULITY GONE BUT LOW CONVERSION STILL THERE AND I DRIVE 6 MONTHS WITH LOW CONVERSION CODE ONLY ...IN BETWEEN I TRIED 3 TIMES TO FILL BULK DEF FROM PUMPS AND BAD QUALITY POPS EVERTIME .THEN FLUSH BACK AND PUT BOX FLUID IN .
AFTER DRIVIING 3 MONTHS ON BOX FLUID BAD OUTLET NOX SENSOR CODES POP UP AND I CHANGE .ALL IS GOOD AFTER THAT DRIVING SINCE 4 MONTHS...ON BULK DEF FLUID

 

SHUT YOUR CAPS OFF! Also throw in a comma, every now and then.

 

C’mon man. Leave the new member alone! Hahaha.

 

Sorrie

 

Hi, can someone help me? I have these 4 codes everytime i go long uphill wz more than 40k lbs;
1. SPN 4364 FMI 18
2. SPN 3364 FMI 2
3. SPN 5246 FMI 15
4. SPN 5246 FMI 16

Changed 1box temp sensor, inlet n outlet nox sensors, def pump so far n still above codes coming...

Codes will disappear after sometimes on flat road, if on hills would stay longer... and truck derates to 55mph.
If i stop n do parked regen, check engine n flashing def ember light will go n engine light wud stay for a day or more.

Thanks for ur reply

 

Your one box is crapping out unfortunately. Get ready to spend some money. You might get another year out of it, but probably eventually it's just going to put you into a 5-mile an hour derate.