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Volvo S70 Made from 1998 to 2000, this sporty model replaced the 850 sedan and instantly became a hit.

PO code 429

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Old 01-04-2011, 10:54 AM
tht828's Avatar
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Default PO code 429
The check engine light has come on my 98 S70 with a code PO 429. Any one know what might be causing it?
 
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Old 01-04-2011, 04:28 PM
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It is actually code P029 (zero, not "O") and indicates low catalyst efficiency. Only cure is a new cat.
 
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Old 01-04-2011, 10:30 PM
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is it an awd model by any chance?
 
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