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1993 Volvo 960
pg. 4:14 Three-way catalytic converter
Three-way catalytic converter cautions
● Keep your engine properly tuned. Certain engine malfunctions, particularly involving the electrical,
fuel or distributor ignition systems, may cause unusually high three-way catalytic 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 or backfiring. A properly tuned
engine will help avoid malfunction that could damage the three-way catalytic converter.
● Remember that tampering or unauthorized modification to the engine or the vehicle may be illegal
and can cause three-way catalytic converter or exhaust system overheating. This includes:
- Altering fuel injection settings or components. Adjusting distributor ignition timing beyond specified
limits.
- Altering emission system components or location or removing components
- Repeated use of leaded fuel.
● 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.
● Excessive starter cranking (in excess of one minute), with an intermittently firing or flooded engine,
can cause three-way catalytic converter or exhaust system overheating.
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