1977 Volvo 262 264 265
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Keep your engine properly tuned. Certain engine malfunctions, particularly involving the electrical,
fuel or ignition systems, may cause unusually high converter temperatures. Do not continue to operate
your vehicle if you detect engine misfire, noticeable loss of power or other unusual operating
conditions, such as engine overheating, repetitive stalls or backfires. A properly tuned engine will help
avoid malfunctions that could damage the catalytic converter.
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Remember that tampering or unauthorized modifications to the engine or the vehicle can cause
catalyst or exhaust system overheating, in addition may be illegal. This includes:
Altering fuel injection settings or components.
Adjusting ignition timing beyond specified limits.
Altering emission system components or location or removing components.
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Do not park your car over combustible materials, such as grass or leaves, which can come into contact
with the hot exhaust system and cause such materials to ignite under certain wind and weather
conditions.
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Excessive starter cranking (in excess of one minute) with an intermittently firing or flooded engine,
can cause catalyst or exhaust system overheating. This also applies to lengthy pushing or towing of
vehicle to start.
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