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80MPH my car starts to stink


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  • 4 months later...
  • 3 months later...

If the Cat is smelling then usually it is an ignition misfire causing the Cat to overheat and produce the sulphur smell

Excess oxygen levels can also cause the Cat to overheat so if there is a small leak in any part of the exhaust system upstream of the Cat or a major leak in the inlet manifold then this can also cause it

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  • 7 months later...

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