Question about 1986 Renault Sport

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Can you help with the fault code PO420 on a renault scenic 2001 1600 petrol.On the reader it just says ''Generic Catalyst''. any thoughts?

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  • ebnbon May 18, 2009

    Thanks Ill check them, i have reset and so far the light has stayed out.

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  • Renault Master
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Usually indicates exhaust leak, plugged catalytic converter, or faulty oxygen sensor.

Posted on May 18, 2009

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