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: 1514 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. Preliminary Checks: 1) Check for any blockage in fuel line 2) Check for fuel regulator. 3) Check any blockage/leakage injectors. 4) Check any Air leakage through intake Trouble Shooting: DTC’s confirmation:- Recheck the fault, fault shall not reappear. Step Checks IF YES IF NO 1 Check sparkplug(s) Rectify/Replace sparkplugs Go to Step 2 2 Check ignition coil(s) Rectify/Replace ignition coils Go to Step 3 3 Are there any blockage/leakage in injectors Rectify/Replace injectors Go to Step 4 4 Check intake air system Rectify/Replace intake air system Go to Step 5 5 Fault Still Persists? Replace EMS ECU Follow the steps again for reconfirmation
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