What can I do about the Fuel injectors 1991 jaguar Xjs not firing?

If the fuel injectors on your 1991 Jaguar XJS are not firing, first check the electrical connections and wiring to ensure they are intact and not corroded. Next, inspect the fuel injector relay and the engine control unit (ECU) for faults, as they play a crucial role in injector operation. Additionally, test the injectors for resistance with a multimeter; if they are faulty, they may need to be replaced. If the issue persists, consider consulting a professional mechanic for a thorough diagnosis.