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 MANUALSJAGUAR2005XJ8 BASEREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYFUEL CHARGING AND CONTROLS - 4.2L (2003.5-09)
2005 Jaguar XJ8 Base
Fuel Charging And Controls - 4.2L (2003.5-09)
2005 Jaguar XJ8 BaseSECTION Fuel Charging And Controls - 4.2L (2003.5-09)
- Specifications
- Description and Operation
- Diagnosis and Testing
- Fuel Charging and Controls - VIN Range: G00442->G45703
- Inspection and Verification
- Visual Inspection Chart
- Diagnostic Trouble Code (DTC) index
- Pinpoint Tests
- PINPOINT TEST G290117p1 : DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208; FUEL INJECTORS, VEHICLES WITHOUT SUPERCHARGER
- G290117t1 : CHECK THE INJECTOR COIL RESISTANCE
- G290117t2 : CHECK THE INJECTOR COIL INSULATION
- G290117t3 : CHECK THE INJECTOR SUPPLY VOLTAGE
- G290117t4 : CHECK THE INJECTOR GROUND CIRCUIT
- G290117t5 : CHECK THE INJECTOR GROUND CIRCUIT FOR SHORT CIRCUIT TO BATTERY
- G290117t6 : CHECK THE INJECTOR GROUND CIRCUIT FOR SHORT CIRCUIT TO GROUND
- PINPOINT TEST G290117p2 : DTC P0190, P0192, P0193; FUEL PRESSURE (FRP) SENSOR
- PINPOINT TEST G290117p3 : DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208; FUEL INJECTORS, VEHICLES WITH SUPERCHARGER
- G290117t10 : CHECK THE INJECTOR COIL RESISTANCE
- G290117t11 : CHECK THE INJECTOR COIL INSULATION
- G290117t12: CHECK THE INJECTOR SUPPLY VOLTAGE
- G290117t13 : CHECK THE INJECTOR GROUND CIRCUIT
- G290117t14 : CHECK THE INJECTOR GROUND CIRCUIT FOR SHORT CIRCUIT TO BATTERY
- G290117t15 : CHECK THE INJECTOR GROUND CIRCUIT FOR SHORT CIRCUIT TO GROUND
- PINPOINT TEST G290117p1 : DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208; FUEL INJECTORS, VEHICLES WITHOUT SUPERCHARGER
- Fuel Charging and Controls - VIN Range: G45704->G99999
- Overview
- Inspection and Verification
- Symptom Chart
- DTC index
- Pinpoint Tests
- Notes
- PINPOINT TEST G240048p1 : FUEL INJECTOR CIRCUITS (VEHICLES WITHOUT SUPERCHARGER)
- G240048t1 : CHECK THE INJECTOR COIL RESISTANCE
- G240048t2 : CHECK THE INJECTOR COIL INSULATION
- G240048t3 : CHECK THE INJECTOR SUPPLY VOLTAGE
- G240048t6 : CHECK THE INJECTOR CONTROL CIRCUIT FOR SHORT CIRCUIT TO GROUND
- G240048t5 : CHECK THE INJECTOR CONTROL CIRCUIT FOR SHORT CIRCUIT TO POWER
- G240048t4 : CHECK THE INJECTOR CONTROL CIRCUIT FOR HIGH RESISTANCE
- PINPOINT TEST G240048p3 : FUEL INJECTOR CIRCUITS (VEHICLES WITH SUPERCHARGER)
- G240048t13 : CHECK THE INJECTOR COIL RESISTANCE
- G240048t14 : CHECK THE INJECTOR COIL INSULATION
- G240048t15 : CHECK THE INJECTOR SUPPLY VOLTAGE
- G240048t16 : CHECK THE INJECTOR CONTROL CIRCUIT FOR SHORT CIRCUIT TO GROUND
- G240048t17 : CHECK THE INJECTOR CONTROL CIRCUIT FOR SHORT CIRCUIT TO POWER
- G240048t18 : CHECK THE INJECTOR CONTROL CIRCUIT FOR HIGH RESISTANCE
- PINPOINT TEST G240048p4 : THROTTLE BODY MOTOR CIRCUIT (VEHICLES WITHOUT SUPERCHARGER)
- G240048t19 : CHECK THE THROTTLE ACTUATOR CONTROL MOTOR SUPPLY CIRCUIT FOR SHORT CIRCUIT TO GROUND
- G240048t20 : CHECK THE THROTTLE ACTUATOR CONTROL MOTOR SUPPLY CIRCUIT FOR SHORT CIRCUIT TO POWER
- G240048t21 : CHECK THE THROTTLE ACTUATOR CONTROL MOTOR NEGATIVE CIRCUIT FOR SHORT CIRCUIT TO GROUND
- G240048t22 : CHECK THE THROTTLE ACTUATOR CONTROL MOTOR NEGATIVE CIRCUIT FOR SHORT CIRCUIT TO POWER
- G240048t23 : CHECK THE THROTTLE ACTUATOR CONTROL MOTOR SUPPLY CIRCUIT FOR HIGH RESISTANCE
- G240048t24 : CHECK THE THROTTLE ACTUATOR CONTROL MOTOR NEGATIVE CIRCUIT FOR HIGH RESISTANCE
- PINPOINT TEST G240048p5 : THROTTLE BODY MOTOR CIRCUIT (VEHICLES WITH SUPERCHARGER)
- G240048t25 : CHECK THE THROTTLE ACTUATOR CONTROL MOTOR SUPPLY CIRCUIT FOR SHORT CIRCUIT TO GROUND
- G240048t26 : CHECK THE THROTTLE ACTUATOR CONTROL MOTOR SUPPLY CIRCUIT FOR SHORT CIRCUIT TO POWER
- G240048t27 : CHECK THE THROTTLE ACTUATOR CONTROL MOTOR NEGATIVE CIRCUIT FOR SHORT CIRCUIT TO GROUND
- G240048t28 : CHECK THE THROTTLE ACTUATOR CONTROL MOTOR NEGATIVE CIRCUIT FOR SHORT CIRCUIT TO POWER
- G240048t29 : CHECK THE THROTTLE ACTUATOR CONTROL MOTOR SUPPLY CIRCUIT FOR HIGH RESISTANCE
- G240048t30 : CHECK THE THROTTLE ACTUATOR CONTROL MOTOR NEGATIVE CIRCUIT FOR HIGH RESISTANCE
- Fuel Charging and Controls - VIN Range: G00442->G45703
- Removal and Installation
- Fuel Injection Supply Manifold (19.60.13)
- Fuel Injectors (18.10.02)
- Throttle Body - Vehicles With: Supercharger, VIN Range: G00442->G45703 (19.70.04)
- Throttle Body - Vehicles With: Supercharger, VIN Range: G45704->G99999 (19.70.04)
- Throttle Body - Vehicles Without: SuperchargerVIN Range: G00442->G45703 (19.70.04)
- Throttle Body - Vehicles Without: SuperchargerVIN Range: G45704->G99999 (19.70.04)
RENDER: 1.0x
NO RELATED
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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.