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The VCM Fuel 14 Fail 14 code on a 1993 Jaguar Vanden Plas indicates a problem with the vehicle's fuel system, specifically related to the Vehicle Control Module (VCM). This code often signals an issue with the fuel injectors, fuel pressure, or the fuel pump. It may also indicate an electrical fault or a communication error within the fuel system components. Diagnosing the specific cause typically requires using diagnostic tools and checking the fuel system's electrical and mechanical aspects.

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