{| |- | Idle air control valve. Looks for stepper wildly out with hot or cold(<30degC) engine. Probably a sticky stepper motor, but cleaning mmay help. Chris, www.kwecars.com
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The Check Engine Code FF48 for a 1993 Jaguar XJS typically indicates a problem related to the fuel system, specifically concerning the fuel injectors or their control. This code can suggest issues such as injector malfunction, wiring problems, or issues with the engine control unit (ECU) affecting fuel delivery. It's essential to diagnose the exact cause through further testing and inspection of the fuel system components. Always consult a professional mechanic or a service manual for precise troubleshooting steps.
EGR vacuum solenoid circuit fault
Exhaust gas recirculation valve fault
Code 16 Air temperature sensor fault
Fault code FF17 on a 1993 Jaguar XJS typically indicates an issue with the engine management system, specifically related to the fuel mixture or oxygen sensor readings. This code often points to a problem with the air-fuel ratio, which can affect engine performance and emissions. It’s advisable to check the oxygen sensors and the fuel injection system to diagnose and resolve the issue. Always refer to the vehicle’s service manual for specific troubleshooting steps.
Fault code FF17 on a 1993 Jaguar XJS typically indicates an issue related to the throttle position sensor (TPS) or its circuit. This code can signify that the sensor is providing incorrect readings to the engine control unit, leading to performance issues. It's advisable to check the sensor's wiring and connections for any damage or corrosion, and to test or replace the TPS if necessary. Always refer to the vehicle’s service manual for specific troubleshooting steps and repairs.
The fault code FF77 typically indicates a fault with the ABS hydraulic unit or the ABS control module in a 1994 Jaguar XJS. It is recommended to have the ABS system diagnosed and repaired by a qualified technician to ensure the system is functioning properly.
Evaporative canister purge control valve circuit fault
coolant temp sensor fault
a problem with the throttle potentiometer
mass air flow bad
Evaporative canister purge control valve circuit fault