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.

1994 Jaguar XJ12FACTORY OEM SERVICE PROCEDURE

Fuel Pressure: 6.0L

Disconnect wire from inertia switch. Inertia switch is located on passenger's side footwell on front door pillar. Start engine and let idle until engine stalls. Crank engine an additional 5 seconds.

Fig 1: Locating Heated Oxygen Sensor/Fuel Pump Relay (XJ6)

Courtesy of JAGUAR CARS, INC.

FUEL PUMP PERFORMANCE

Application	Pressure: psi (kg/cm² )
All Models	35-45 (2.5-3.2)

Factory Service Tools

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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.