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Nexon Gasoline – EMS ECU Bosch
DTC Troubleshooting Manual
Version: 0.1
Date: 26-08-2017
Prepared By: Sunu S Babu/Yogesh Jadhav
Checked By: Yeshwant Jadhav
Approved By: Satish Kumar
Document Part No: 2921 02 224 A1736
Page: 580 of 1203
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.
P0363-92: Cylinder Selective Fuel Cutoff Active due to Catalyst Damaging Misfire - Performance or
Incorrect Operation
Overview:
ISO Code
P0363-92
Customer Symptom
Poor Drivability.Alternate Cylinder cut Off & Vehicle stall.
Emission will get effected.
Fault Effects (On Vehicle)
1. Poor driveability.
2. Misfire / Backfire.
3. Exhaust heat up.
4. Threat to damage catalytic converter.
Lamp Status (If Any)
MIL ON after 3 drive cycles
Fault Detection Condition
This fault gets logged if any of the Cylinder Spark plug misfire is detected
randomly.
Normal Operating Condition
Proper firing by spark plugs and proper fuel injection by Injectors.
Probable Trouble Area
Injectors/Spark Plugs faulty wiring Harness connections, Clogged
Injectors, Faulty Spark Plugs, HT cables, low compressor pressure,
improper valve clearance, improper valve timing, Faulty ECT Sensor.
Healing Condition
Engine Running and 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:
NA
Preliminary Checks:
1. Faulty Wiring Harness connections of Injectors/ Ignition Coil A / Ignition Coil B
2. Clogged Injectors
3. Faulty Ignition Coils/HT Cables
4. Low Compression Pressure
5. Improper valve clearance
6. Improper Valve timing
7. Faulty ECT Sensor