volvo Workshop Repair Guides

Volvo Workshop Service and Repair Manuals

CO% Adjustment Using Test Diode|Page 1229 > < CO% Adjustment Using Test Diode|Page 1227
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Air/Fuel Mixture: Adjustments
CO% Adjustment Using Volvo Mono-Tester

CO-Adjustment Using Mono-Tester

Connecting Mono-Tester

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Connect Battery (+) and (-) posts

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Connect HT wire for No. 1 cylinder

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Connect Ignition setting sensor/stroboscope

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Connect CO test point (pink wire).

Check/Adjust Idle Speed
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Warm-up engine

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Run engine at 1500 rpm.

NOTE: Warm-up engine until radiator thermostat opens and then for a further 10 minutes.

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Ground blue-white wire to close idle air control valve.

NOTE: Switch off AC as applicable.

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Check idle speed.

CO% Adjustment Using Test Diode|Page 1229 > < CO% Adjustment Using Test Diode|Page 1227