LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Jaguar
>>
2002
>>
XJR 100
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Controls - Self-Diagnostics
>>
Diagnostic Trouble Code Identification
>>
DTC P0430: Catalyst Efficiency Below Threshold (Bank 2)
>>
Possible Causes
September 30: LEMON manuals is back up on a temporary server! Slowness is possible
Possible Causes
HO2S disconnected.
HO2S to ECM wiring fault.
HO2S heater to ECM wiring fault.
HO2S heater failure.
Upstream HO2S failure.
Downstream HO2S failure.
Catalyst failure.