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
Evaporative canister purge control valve circuit fault
In 1990-1994 XJ6 the VCM Code 44 is the code for the O2 sensor, either rich or lean exhaust has been detected and is causing the code to trigger. It could indicate a bad O2 sensor.
VCM code fail 89 on a 1993 Jaguar typically indicates a problem with the vehicle's fuel system, specifically related to the fuel pressure or fuel delivery. This code can arise from issues such as a faulty fuel pump, clogged fuel filter, or problems with the fuel injectors. It's advisable to check the fuel system components and ensure they are functioning correctly to resolve this issue. A diagnostic tool can help pinpoint the exact problem for further troubleshooting.
VCM code Fuel Fail 26 on a Jaguar XJ6 typically indicates a problem related to the fuel supply or fuel system. This may involve issues such as low fuel pressure, a malfunctioning fuel pump, or problems with the fuel injectors. It's essential to diagnose the specific cause to address the issue effectively, which could involve checking fuel lines, filters, and electrical connections. Consulting a professional mechanic or service manual is recommended for accurate troubleshooting.
I own a 91' XJ6 also and i believe when that code comes up it is as simple as your gas cap not being on all the way
Fuel Fail 37 is either a fault with the EGR Valve or its Solenoid
what means fail 44 of vcm of jaguar
Idle speed control valve coil 1 fault. Off voltage not less than 0.85 volts or on voltage not exceeding 12.25 volts.
fuel 44 is heated oxygen sencer bank A other term lambda senser the jag has two.
Code fuel 1 would indicate Oxygen sensor. A good information source is the Haynes Manual Jaguar XJ6 1988-94. Good luck.
it means Pad NOT Pao YOUR BRAKE PADS ARE LOW.
'vacuum control module'