Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1.0 Date: 30/11/2019 Author: ERC Page 240 of 610 Copyright by TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without our consent P00C6-00 : Fuel Rail Pressure Too Low - Engine Cranking Overview: Code Probable Trouble Area(s) Effect on Vehicle Fault Code: P00C6-00 IMV, Injectors, HP Pump, Rail Pressure Sensor, Fuel Filter, Fuel lines, Wiring harness & EMS ECU 1. MI & CE lamp OFF 2. Reduce torque active 3. Activates delayed engine stop request 4. Raised engine idle target speed 5. Disables engine drive mode i.e. Sport mode, Eco mode Component Details: Inlet Metering Valve (IMV) regulates the amount of fuel discharged from fuel pump to common rail. It meters the fuel flowing into the high pressure fuel pump by a variable solenoid valve. IMV is mounted on high pressure fuel pump Rail pressure sensor is used to measure fuel pressure inside the common rail and facilitates a closed loop control of the injection pressure. It is mounted on common rail which is fitted above intake manifold on the cylinder head. Fuel is maintained at different pressure magnitudes in the common rail depending on the requirement of various engine operating conditions The high-pressure fuel pump (HP pump) is the interface between the low-pressure and high-pressure stages. It discharges fuel into common rail and ensures that there is always sufficient fuel available under pressure in all engine operating conditions; Integrated inlet metering valve (IMV) controls the fuel flow rate into the common rail to generate desired pressure. Pump is mounted on engine front, inside timing drive front cover. On a common-rail diesel injection system, injectors are connected to the fuel rail by short high-pressure fuel lines. The start of injection and injected fuel quantity are controlled by the electrically triggering the injector with EMS ECU Trouble Shooting steps: Sr. No. Steps Rectification Step 1 Check throttle position sensor electrically for open or short Physical check Step 2 Check wiring harness Continuity Step 3 Check connection at throttle position sensor Physical check Step 4 If the problem persists, replace the sensor - Step 5 Water or Corrosion in connector or sensor Physical check
RkJQdWJsaXNoZXIy MTIwNTUz