TATA BSVI Gasoline_Bifuel Program – EMS ECU Bosch DTC Troubleshooting Service Manual Version: 1.9 Date: 24-01-2022 Prepared By: Veer K. Singh / Prudhvi B Varma Checked By: Yeshwant Jadhav Approved By: Sanjeev M. Document Part No: 2921 02 xxx xxxx Page: 1508 of 1692 Copyright © TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. P1016-92: max fault of multiplicative adaptation value in CNG-mode - CNG System Too Lean Bank 1 Overview: ISO Code P1016-92 Customer Symptom Poor Driveability, Vehicle stall Fault Effects (On Vehicle) Poor Driveability, Vehicle stall Lamp Status (If Any) MIL ON after 3 drive cycle Fault Detection Condition This fault gets logged when CNG System Too Lean Bank 1 (Less fuel injection than required). Normal Operating Condition Normal driving without any drivability issue, CNG injectors functioning as required Probable Trouble Area Wiring Harness Connections, Injectors, ECU Healing Condition After 3 drive cycles Fault permanent deletion 1. Clear DTC Command form Scan tool 2. Stack Over Flow. 3. 40 warm up cycles. 4. ECU Flashing. 5. ECU power fail Component Details: The CNG Fuel injectors are normally closed solenoid valves, which operate when the electromagnetic core is energized by ECU. Based on engine operating conditions, ECU adjusts injection pulse widths to inject precise amount of fuel required.
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