Land Rover Discovery: Engine Emission Control - Ingenium i4 2.0l Diesel / Diagnosis and Testing
PRINCIPLES OF OPERATION
For a detailed description of the Engine Emission Control, refer to the
relevant Description and Operation section in the workshop manual. REFER
to: Engine Emission Control (303-08B Engine Emission Control - INGENIUM
I4 2.0L Diesel, Description and Operation).
INSPECTION AND VERIFICATION
CAUTION:
Diagnosis by substitution from a donor vehicle is NOT acceptable.
Substitution of control modules does not guarantee confirmation of a
fault, and may also cause additional faults in the vehicle being tested
and/or the donor vehicle.
- NOTES:
- If a control module or a component is suspect and the vehicle
remains under manufacturer warranty, refer to the Warranty Policy
and Procedures manual, or determine if any prior approval
programme is in operation, prior to the installation of a new
module/component.
- When performing voltage or resistance tests, always use a digital
multimeter accurate to three decimal places, and with an up-todate
calibration certificate. When testing resistance always take the
resistance of the digital multimeter leads into account.
- Check and rectify basic faults before beginning diagnostic routines
involving pinpoint tests.
- Verify the customer concern
- Visually inspect for obvious signs of damage and system integrity
Visual Inspection
- If an obvious cause for an observed or reported concern is found,
correct the cause (if possible) before proceeding to the next step
- If the cause is not visually evident, verify the symptom and refer to
the
Symptom Chart, alternatively check for Diagnostic Trouble Codes
(DTCs) and refer to the DTC Index
- Check DDW for open campaigns. Refer to the corresponding bulletins
and SSMs which may be valid for the specific customer complaint and
carry out the recommendations as required
SYMPTOM CHART
SYMPTOM:
Engine
difficult to
start
POSSIBLE
CAUSES:
- Exhaust gas
recirculation
system fault
ACTION:
Using the Jaguar Land Rover approved diagnostic
equipment, perform routine - Inline diagnostic unit
2 diagnostic test - Exhaust gas recirculation valve.
Clear the DTCs and retest
SYMPTOM:
Engine idle
erratic
POSSIBLE
CAUSES:
- Exhaust gas
recirculation
system fault
ACTION:
SYMPTOM:
Lack of
power when
accelerating
POSSIBLE
CAUSES:
- Exhaust gas
recirculation
system fault
ACTION:
SYMPTOM:
Engine
stops/stalls
POSSIBLE
CAUSES:
- Exhaust gas
recirculation
system fault
- Positive
crankcase
ventilation
system
leaking/blocked
ACTION:
SYMPTOM:
Fuel
consumption
excessively
high
POSSIBLE
CAUSES:
- Exhaust gas
recirculation
system fault
- Positive
crankcase ventilation
system
leaking/blocked
ACTION:
SYMPTOM:
Exhaust
emissions
excessive
POSSIBLE
CAUSES:
- Exhaust gas
recirculation
system fault
- Positive
crankcase
ventilation
system
leaking/blocked
ACTION:
SYMPTOM:
Engine oil
leaks
POSSIBLE
CAUSES:
- Positive
crankcase
ventilation
system
leaking/blocked
ACTION:
- Check the integrity of the positive crankcase
ventilation system. Rectify as necessary
DTC INDEX
For a list of Diagnostic Trouble Codes (DTCs) that could be logged on this
vehicle, please refer to Section 100-00. REFER to: Diagnostic Trouble Code
Index - INGENIUM I4 2.0L Diesel, DTC: Engine Control Module (ECM)
B10A2-07 to P034B-76 (100-00 General Information, Description and
Operation).
Engine Emission Control - Ingenium i4 2.0l Diesel Specifications
Torque Specifications
Capacities
READ NEXT:
GENERAL PROCEDURES
Inspect bearings for the following defects.
Cratering - fatigue failure
Spot polishing - incorrect seating.
Imbedded dirt engine oil.
Scratching - dirty engine oil
Base expo
GENERAL EQUIPMENT
Compression tester (petrol/diesel)
Land Rover diagnostic equipment
CHECK
CAUTIONS:
Before disconnecting any components, make sure the area is clean
and free from foreign material.
CAUTION:
The compressed air line supply pressure must be between 3.5 and 12
bar (50 and 175 psi) for the smoke test equipment to function
correctly. Do not exceed this pressure. Failure to follow this
SEE MORE:
PRINCIPLES OF OPERATION
For a detailed description of the Glass, Frames and Mechanisms, refer to
the relevant Description and Operation section in the workshop manual.
REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and
Mechanisms, Description and Operation).
Inspection and verificatio
Diesel Exhaust Fluid (DEF) tank module
Diesel Exhaust Fluid (DEF) level sensor
Diesel Exhaust Fluid (DEF) tank module electrical connection
Diesel Exhaust Fluid (DEF) pressure line connection
Diesel Exhaust Fluid (DEF) injection pump electrical connection
Diesel Exhaust Fluid (DEF) heater el