| derate 3712, 3714, 2976 |
| 08-27-2025, (Subject: derate 3712, 3714, 2976 ) Post: #1 | |||
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| derate 3712, 3714, 2976 Hello, 2015 ISL9 here. Changed out my NOX and doser unit (genuine cummin) to get rid of some codes and it did, but left with these three now. Ran a regen, completed, codes still there. Ran an SCR test, eventually truck shuts off, Aftertreatment Warm Up an DEF dosing test says stopped, check status window, but status window just says Running. Ive been reading and some suggest updating the ECU, or maybe the doser pump for the 2976 code. Flashing this truck is unfortunately not an option, as it needs to be passing the biannual CA smog check. Thanks for your help. | |||
| 08-27-2025, (Subject: derate 3712, 3714, 2976 ) Post: #2 | |||
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| RE: derate 3712, 3714, 2976 Yea update the ECM, if it has the original program in it from 2015 it's very outdated and the newest file could have fixes for some of those codes you mentioned. | |||
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| 08-28-2025, (Subject: derate 3712, 3714, 2976 ) Post: #3 | |||
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| RE: derate 3712, 3714, 2976 ... and while you are4 at it, do a full EGR tune-up on it as well... http://rawze.com/forums/showthread.php?t...30#pid7030 User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!. | |||
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