Land Rover ME7.2 Engine Management ON-BOARD DIAGNOSTICS Manual PDF

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Land Rover ME7.2 Engine Management ON-BOARD DIAGNOSTICS Manual – PDF DOWNLOAD

FILE DETAILS:

Land Rover ME7.2 Engine Management ON-BOARD DIAGNOSTICS Manual – PDF DOWNLOAD

Language : English
Pages : 85
Downloadable : Yes
File Type : PDF

IMAGES PREVIEW OF THE MANUAL:

TABLE OF CONTENTS:

Land Rover ME7.2 Engine Management ON-BOARD DIAGNOSTICS Manual – PDF DOWNLOAD

1 Contents 2
2 Introduction 5
2.1 Inputs and Outputs 5
3 Mode $06 Data 7
4 OBD Drive Cycle Information 10
5 On Board Monitoring 12
5.1 Catalyst Monitoring 12
5.1.1 Description 12
5.1.2 Monitoring Structure 13
5.1.3 Block Diagram of System Operation 15
5.1.4 Drive Cycle Information 16
5.2 Misfire Monitoring 17
5.2.1 Description 17
5.2.2 Monitoring Structure 18
5.2.3 Fault Processing for Emissions Relevant Misfire 21
5.2.4 Drive Cycle Information 22
5.3 Secondary Air Injection System Monitoring 23
5.3.1 Description 23
Monitoring Structure 24
5.3.3 Drive Cycle Information 25
5.4 Evaporative Emission System Leak Measurement 26
5.4.1 Description of Leak Measurement 26
Monitoring Structure 29
5.4.3 Description of Evaporative Emission Canister Purge System Flow Check 34
5.4.4 Monitoring Structure 34
5.4.5 Drive Cycle Information 39
5.5 Fuel System Monitoring 40
5.5.1 Description 40
Monitoring Structure 42
5.5.3 Drive Cycle Information 44
5.6 Oxygen Sensor Monitoring 45
5.6.1 Description 45
Monitoring Structure 46
5.6.3 Oxygen Sensor Heater Monitoring Description 48
5.6.4 Oxygen Sensor Heater Monitoring Structure 49
5.6.5 Drive Cycle Information 53
5.7 Thermostat Monitoring 55
Description 55
Monitoring Structure 56
Land Rover Revision Date: September 2004 Page 3 of 84
5.7.3 Drive Cycle Information 59
5.8 Positive Crankcase Ventilation (PCV) System Monitoring 60
5.8.1 Description 60
5.8.2 Drive Cycle Information 62
5.9 Crankshaft Speed and Position Sensor 63
5.9.1 Description 63
5.9.2 Drive Cycle Information 63
5.10 Camshaft Position Control Interface (VANOS) 64
5.10.1 Description 64
5.10.2 Drive Cycle Information 65
5.11 Engine Coolant Temperature Sensor 66
5.11.1 Description 66
5.11.2 Drive Cycle Information 67
5.13 Mass Airflow Sensor & Intake Air Temperature Sensor 68
5.13.1 Mass Airflow Sensor Description 68
5.13.2 Drive Cycle Information 68
5.13.3 Intake Air Temperature Sensor Description 69
5.13.4 Drive Cycle Information 70
5.14 Knock Sensor 71
5.14.1 Description 71
5.14.2 Drive Cycle Information 71
5.15 Fuel Tank Level Sensor 73
5.15.1 Description 73
5.15.2 Drive Cycle Information 73
5.16 Throttle Position Sensor 74
5.16.1 Description 74
5.16.2 Drive Cycle Information 75
5.17 Engine Control Module Self Test 76
5.17.1 Description 76
5.17.2 Drive Cycle Information 76
5.18 Ambient Air Temperature Interface 77
5.18.1 Description 77
5.18.2 Drive Cycle Information 77
5.19 Vehicle Speed Interface 78
5.19.1 Description 78
5.19.2 Drive Cycle Information 78
5.20 Transfer Box Control Module Interface 79
5.20.1 Description 79
5.20.2 Drive Cycle Information 79
5.21 CAN System 80
5.21.1 Description 80
5.21.2 Drive Cycle Information 80
Land Rover Revision Date: September 2004 Page 4 of 84
5.22 Fuel Injectors 81
5.22.1 Description 81
5.22.2 Drive Cycle information 81
5.23 Idle Speed Control Actuator 83
5.23.1 Description 83
5.23.2 Drive Cycle Information 83
5.24 Electronic Throttle Interface 84
5.24.1 Description 84
5.24.2 Drive Cycle Information 84

S.V 28/02/2025