TATA BSVI Gasoline_Bifuel Program – EMS ECU Bosch DTC Troubleshooting Service Manual Version: 2.6 Date: 5-10-2023 Prepared By: Pradip Shimpi Checked By: Yeshwant Jadhav Approved By: Sanjeev M. Document Part No: 2921 02 xxx xxxx Page: 1660 of 1720 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. Trouble Shooting:- Step Checks IF YES IF NO 1. Are Fuel Lines Blocked Remove the blockage Go to Step 2 2. Is Fuel Regulator operational Go to Step 3 Replace the Fuel Regulator 3 Are the Injectors Blocked Clear the blockage Go to Step 4 4 Are the Injectors leaking Replace the leaking Injector Go to Step 5 5 Is the Intake Air Circuit leaking Modify/Repair/Replace the leaking components Go to step 6 6 Perform IO test for throttle valve. Is test successful? Go to step 9 Go to step 7 7 Are there any faults related to throttle valve Rectify them by following their rectification procedure Go to step 8 8 Is throttle valve stuck Open? Replace throttle valve Go to step 9 9 If the fault still persists Replace the Lambda Sensor, IF fault still persists then replace EMS ecu Repeat the procedure for confirmation DTC’s confirmation:- After rectification, ensure the following points by referring engine parameters using TML diagnostic tool before handing over to customer. Recheck the DTC using TML diagnostic tool, fault shall not reappear. Circuit Schematic Diagram: NA Component Location & Image:- NA Connector Location: - NA Connector View & Information: - NA
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