07-15-2013, 05:22 PM
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#81
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Quote:
Originally Posted by ft_sjo
Most fuel injection cars have 'fuel cut on over-run', to save fuel. It shows as 20:1 as that's the highest the oxygen sensor is calibrated for. In actual fact it's just mainly air passing through the engine, a wheel-driven air pump, to be exact!
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Phew that's a relief. 
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