How can you tell if it is bad,my engine light is on also Gearbox Fault is lite up in the message box alternating with flashing message Restricted Performance
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2003 Jaguar S-Type Question: Catalytic Converter
Answer #1Superbob June 26, 2011, 13:27Master
You probably can't tell if your catalytic converter is bad, if you had the experience and tools to tell, you wouldn't need to ask. Get the warning lights diagnosed by a Jag specialist, ASAP... Save yourself some money and misery by getting it checked now...
The check engine light indicates that the computer has detected a malfunction in the engine/transmission control system and has diagnostic codes and data stored which would be essential in diagnosing the problem.
A technician with a scanner can access the diagnostic codes and data and then be able to give you a diagnosis.
If you want to find a specialist, here's our directory link for you: