{| |- | 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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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.
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
P1775 is oxygen senson open circuit. Craig
Idle speed control valve coil 1 fault. Off voltage not less than 0.85 volts or on voltage not exceeding 12.25 volts.