Hyundai Excel 1993, Руководство по ремонту

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CATALYTIC CONVERTER
INSPECTION
Inspect for damage, cracking or deterioration. Replace if faulty.
CAUTION
The catalytic converters require the use of unleaded gasoline
only. Leaded gasoline will destroy the effectiveness of the
catalysts as an emission control device.
Under normal operating conditions, the catalytic converters
will not require maintenance. However, it is important to keep
the engine properly tuned. Engine misfiring may cause over-
heating of the catalysts. This may cause heat damage to the
converters or vehicle components. This situation can also
occur during diagnostic testing if any spark plug cables are
removed and the engine is allowed to idle for a prolonged
period of time.