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Thread: My Problem
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post #2 of (permalink) Old 7th December 2006
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Is the car not still under warranty?

The fan is only there to cool the radiator to in turn cool the water in the cooling system, nothing to do with air intake into the engine, so don't let someone put that daft notion into your head.

It sounds like maybe you have a severely clogged air filter, or a problem with the temperature sensor or air flow sensor, which is telling the fuel system that you need a lot more fuel than you do, therefore upsetting the air/fuel ratio thus upsetting the lambda sensor, which in turn warns of possible cat damage.
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