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Which warning does a flashing engine management lamp indicate?

  • A.A misfire severe enough to damage the catalyst
  • B.A minor emissions fault, which should be investigated at the next service but requires no immediate action
  • C.Low oil pressure
  • D.A fault within the ignition system, which is indicated separately from the other emissions related faults logged

Answer: A

A flashing lamp means stop or reduce load immediately to save the catalyst. A steady lamp is the ordinary emissions warning. The distinction between steady and flashing is one every driver should know. Reading the definition literally, rather than recalling a summary, avoids the usual confusion. Tracing the requirement back to the physical constraint that produces it makes the answer follow. Checking which component actually carries the load settles most questions of this kind at once.

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