Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJAGUAR2005S-TYPE BASE, 3.0 TREPAIR AND DIAGNOSISENGINE MECHANICALAUXILIARY EMISSION CONTROL SYSTEMSENGINE EMISSION CONTROL
2005 Jaguar S-Type Base, 3.0 T
Engine Emission Control
2005 Jaguar S-Type Base, 3.0 TSECTION Engine Emission Control
- Engine Emission Control (2.5L/3.0L/4.2L)
- Specifications
- Engine Emission Control - Description & Operation
- Engine Emission Control - Description & Operation (VIN Range: N52207->N99999)
- Engine Emission Control - Diagnostic Procedures
- Notes
- Pinpoint Test A: Diagnostic Trouble Code (DTC) P0400 indicates exhaust gas recirculation (EGR) system flow malfunction.
- Pinpoint Test B: Diagnostic Trouble Code (DTC) P0405 indicates exhaust gas recirculation (EGR) valve malfunction, short to battery/12volts
- Pinpoint Test C: Diagnostic Trouble Code (DTC) P0406 indicates exhaust gas recirculation (EGR) valve malfunction, short to ground/open circuit.
- Engine Emission Control - Diagnostic Procedures (VIN Range: N52207->N99999)
- Overview
- Inspection and verification
- Engine Emission Control
- DTC index
- Pinpoint tests
- Notes
- Pinpoint Test A: CHECK THE EGR STEPPER SUPPLY AND CONTROL CIRCUITS
- Pinpoint Test B: CHECK THE SECONDARY AIR INJECTION PUMP CIRCUITS
- Pinpoint Test C: (N/A FEDERAL SPECIFICATION ONLY) CHECK THE SECONDARY AIR INJECTION MAP SENSOR CIRCUITS
- Pinpoint Test D: CHECK THE SECONDARY AIR INJECTION CONTROL VALVE CIRCUITS
- Engine Emission Control - Diagnostic Procedures (VIN Range: N80181->R99999)
- Inspection and verification
- Engine Emission Control
- DTC index
- Pinpoint tests
- Notes
- Pinpoint Test A: CHECK THE EGR STEPPER SUPPLY AND CONTROL CIRCUITS
- Pinpoint Test B: CHECK THE SECONDARY AIR INJECTION PUMP CIRCUITS
- Pinpoint Test C: (N/A FEDERAL SPECIFICATION ONLY) CHECK THE SECONDARY AIR INJECTION MAP SENSOR CIRCUITS
- Pinpoint Test D: CHECK THE SECONDARY AIR INJECTION CONTROL VALVE CIRCUITS
- Exhaust Gas Recirculation (EGR) Valve - Removal and Installation
- Exhaust Manifold to Exhaust Gas Recirculation (EGR) Valve Tube - Removal and Installation
- Secondary Air Injection (AIR) Control Valve - Removal and Installation (3.0L)
- Secondary Air Injection (AIR) Control Valve - Removal and Installation (4.2L, Vehicles Without: Supercharger)
- Secondary Air Injection (AIR) Control Valve - Removal and Installation (4.2L, Vehicles With: Supercharger)
- Secondary Air Injection (AIR) Control Valve to Exhaust Manifold Tube LH - Removal and Installation (3.0L)
- Secondary Air Injection (AIR) Control Valve to Exhaust Manifold Tube RH - Removal and Installation (3.0L)
- Secondary Air Injection (AIR) Control Valve to Exhaust Manifold Tube - Removal and Installation (4.2L, Vehicles Without: Supercharger)
- Secondary Air Injection (AIR) Control Valve to Exhaust Manifold Tube - Removal and Installation (4.2L, Vehicles With: Supercharger)
- Secondary Air Injection (AIR) Pump - Removal and Installation
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.