Hi, Does the light come on with ignition and then go off with engine running? If no, the bulb could be gone. The Lambda light can come on when the engine stalls or has a low voltage event. If it does light with ign on only and stays out with engine running, it means the Fuel and Injection has no faults it can report on. Some faults do not cause lambda lamp to light, but odd running faults or fuel consumtion will advise you of them.
ivor940
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