What is the problem code on a Jaguar XJS?
What is the problem code on a Jaguar XJS?
In these vehicles, the ‘check engine’ malfunction indicator light may illuminate and diagnostic trouble codes (DTCs) FF44 and/or FF45 may be stored. According to the technical bulletin, these DTCs show an inconsistent reading from the heated oxygen sensors (HO2S) due to a slight degradation of the engine to body ground straps.
What causes a Jaguar XJ engine to stall?
In November 1994, Jaguar issued technical bulletin 44-23for Jaguar XJS vehicles with 4.0-litre AJ16 engines. In these vehicles, the engine may stall when the transmission is shifted to Reverse or Drive from Park; stalling was most likely to occur when the engine was cold.
What kind of engine does a Jaguar XJS have?
In August 1997, Jaguar issued an amended technical bulletin 17-9 for 1993-94 model year Jaguar XJS vehicles with 4.0-litre petrol engines. In these vehicles, the operation of the AIR pump clutch was controlled by a relay located in the engine compartment.
When did the spark plug change on the Jaguar XJS?
Jaguar XJS AJ16: spark plug specification change In May 1995, Jaguar issued technical bulletin 12-54for 1995 model year Jaguar XJS vehicles with naturally aspirated 4.0-litre AJ16 engines. In these vehicles, hotter spark plugs were installed in production from VIN 194775. Jaguar XJS V12: rough idle/engine misfire
In these vehicles, the ‘check engine’ malfunction indicator light may illuminate and diagnostic trouble codes (DTCs) FF44 and/or FF45 may be stored. According to the technical bulletin, these DTCs show an inconsistent reading from the heated oxygen sensors (HO2S) due to a slight degradation of the engine to body ground straps.
In November 1994, Jaguar issued technical bulletin 44-23for Jaguar XJS vehicles with 4.0-litre AJ16 engines. In these vehicles, the engine may stall when the transmission is shifted to Reverse or Drive from Park; stalling was most likely to occur when the engine was cold.
In August 1997, Jaguar issued an amended technical bulletin 17-9 for 1993-94 model year Jaguar XJS vehicles with 4.0-litre petrol engines. In these vehicles, the operation of the AIR pump clutch was controlled by a relay located in the engine compartment.
Jaguar XJS AJ16: spark plug specification change In May 1995, Jaguar issued technical bulletin 12-54for 1995 model year Jaguar XJS vehicles with naturally aspirated 4.0-litre AJ16 engines. In these vehicles, hotter spark plugs were installed in production from VIN 194775. Jaguar XJS V12: rough idle/engine misfire
