audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Air/Fuel Mixture|Adjustments|Canada|Page 2691 > < Air/Fuel Mixture|Adjustments|Canada
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use adaptor (arrow) to attach test wire onto ignition coil terminal 1

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connect CO tester according to manufacturer's instructions

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measure CO at tail pipe

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do NOT run air conditioner (if equipped)

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run engine until oil temperature is above 80°C (176°F)

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if fuel lines were disconnected or replaced, bring engine speed to 3,000 rpm several times and let idle for at least 2 minutes

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turn OFF all electrical equipment

NOTE:  While checking and adjusting, radiator fan must not be running.

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check idle speed
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specification: 925 ± 75 rpm

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adjust if necessary to 925 rpm (arrow)

Air/Fuel Mixture|Adjustments|Canada|Page 2691 > < Air/Fuel Mixture|Adjustments|Canada