Jaguar X-Type Sedan and Estate (Wagon). Manual - part 305
Published: 12-Jul-2011
Engine Emission Control - 2.0L Duratorq-TDCi/2.2L Duratorq-TDCi (110kW/150PS) -
Puma - Engine Emission Control
Diagnosis and Testing
Overview
For information on the description and operation of the emission control system:
REFER to:
Engine Emission Control
(303-08 Engine Emission Control - 2.0L Duratorq-TDCi/2.2L Duratorq-TDCi (110kW /150PS) - Puma,
Description and Operation).
Inspection and verification
1. Verify the customer concern.
1.
2. Visually inspect for obvious mechanical or electrical faults.
2.
Visual Inspection
Mechanical
Electrical
Engine breather hoses
Exhaust gas recirculation (EGR) pipes (check for cracks)
EGR valve
EGR cooler
Fuse(s)
W iring harness
Loose or corroded electrical connector(s)
EGR valve
Engine control module (ECM)
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next
step.
3.
4. Use the approved diagnostic system or a scan tool to retrieve any diagnostic trouble codes (DTCs) before moving onto the
symptom chart or DTC index.
Make sure that all DTCs are cleared following rectification.
4.
Symptom chart
Symptom
(specific)
Possible cause
Action
Difficult to start
Exhaust gas recirculation (EGR)
valve(s) stuck open
Check the EGR valve and circuits. Refer to the electrical guides. Check the
mechanical condition of the EGR valves. Rectify as necessary.
Poor/Erratic idle
Lack of power
when accelerating
Engine
stops/stalls
Exhaust gas recirculation (EGR)
valve(s) stuck open
Breather system
disconnected/restricted/blocked
Check the EGR valve and circuits. Refer to the electrical guides. Check the
mechanical condition of the EGR valves. Check the engine breather system.
Check for DTCs indicating an EGR valve, throttle or sensor fault. Rectify as
necessary.
Excessive fuel
consumption
Exhaust gas recirculation (EGR)
valve(s) stuck open
EGR not operating
Breather system
restricted/blocked
Excessive black
smoke
Excessive
emissions
Excessive blow-by
Breather system
restricted/blocked
Check the engine breather system. Rectify as necessary.
Engine oil leaks
Breather system
restricted/blocked
Check the engine breather system. Rectify as necessary.
For a complete list of all diagnostic trouble codes that could be logged on this vehicle. REFER to:
Electronic Engine Controls
(303-14B
Electronic Engine Controls - 2.0L Duratorq-TDCi/2.2L Duratorq-TDCi (110kW /150PS) - Puma, Diagnosis and Testing).