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.
Exhaust gas recirculation valve 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.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
You have it checked for codes and diagnose the cause of the code.
a problem with the throttle potentiometer
mass air flow bad
The "Check Engine" light means that the computer has stored a fault code. You need to use a code scanner to read the fault code. Code scanners can be borrowed, rented or purchased at most auto parts retail stores.
After repairing the cause of the code, you can clear it with a scan tool.
fault code 16 is: Air thermistor. Looks for signal less than 0.1 or more than 4.9 volts
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
take it to an autozone and have them do a code test on it its free and after they are done ask them to erase the codes that should shut it off???
JAGUAR vehicles obd1 code retrieval For Jaguar vehicles with obd1 codes (made before 1995 or 1993), testing the check engine lights in your dash to get the code is simple. All you do is locate the Vehicle Condition Monitor (VCM) button in the dash panel sitting below the tachometer and speedometer. The procedure begins by turning the key off and waiting for 5 seconds then turning the ignition key to position 2 without starting the engine. When you press the VCM button, codes will start to display in your dash panel. Clearing the codes can be done by turning the key off and removing the battery negative terminal for 30 seconds and reconnect.http://www.extreme-check-engine-light-codes.com/Jaguar%20OBD1%20Decoder.htm