Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1 Date: 23/11/2022 Author: ERC Page 731 of 834 Copyright by TATA MOTORS Ltd. This document must not be used in any w ay, such as copying and redistributing to third parties, w ithout our consent Step 7 If black smoke seen, Check the LNT+DPF physically for any damage - Step 8 In case of damage, replace the LNT+DPF - Associated Parameters: Parameter Label Description DID Monitoring DPF differential pressure Delta pressure across DPF FE17 “DPF differential pressure” should be greater than or equal to “DPF differential pressure when clean” when engine is running. DPF differential pressure when clean Delta pressure calculated by model for a clean DPF FE1F Verification condition: Drive the vehicle in highway in engine warmed up condition - accelerate the vehicle from 60kmph to 100kmph. Rise the engine speed above 4000 rpm in Neutral gear. Component Description: Diesel particulate filters capture particle emissions through a combination of filtration mechanisms, such as diffusional deposition, inertial deposition, or flow-line interception. The collected particulates would eventually cause excessively high exhaust gas pressure drop in the filter, which would negatively affect the engine operation. Therefore, diesel particulate filter systems have to provide a way of removing particulates from the filter to restore its soot collection capacity. This removal of particulates, known as the filter regeneration, can be performed either continuously, during regular operation of the filter, or periodically, after a pre-determined quantity of soot has been accumulated. To ensure that particulates are oxidized at a sufficient rate, the filter must operate at a sufficient temperature. Circuit Schematic Diagram:
RkJQdWJsaXNoZXIy MTIwNTUz