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128s155,00n This code is for the Delta P sensor. The senor is reading too high of EGR or the voltage is too high. This is tricky. The sensor needs to be changed and the calibration needs to be done. This will prevent the vanes on the trubo from opening and the EGR from partially closing to allow a good regen to be done. When the vanes don;t move all the way like they should, the regen temps don;t get high enough to allow a burn off and the pressure doesn't get high enough to allow the dust to blow out.
eng sa00 spn003719 00 This codes is because the outlet sensor is failed on the dpf. It could be a bad harness or related to the other code. If this is the sensor that was changed, I would have a warranty come back repair done at the shop to save you money. Otherwise, CLICK HERE for the diagnostic info for this code correction.
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