volvo Workshop Repair Guides

Volvo Workshop Service and Repair Manuals

CO% Adjustment Using Test Diode|Page 2421 > < CO% Adjustment Using Test Diode|Page 2419
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NOTE: CO must be checked/adjusted within 5 minutes of radiator thermostat opening.

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Turn off engine.

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Drill two 2 mm (0.08 in.) holes in plug. 

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Withdraw plug with circlip pliers.

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Start engine.

E15 Adjust CO
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Adjust CO content to 0.6 %.

Counterclockwise reduces CO 
Clockwise increases CO
Adjustment range = 15 turns.

E16 Connect Lambda sond

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Reconnect Lambda sond

E17 Turn Off Engine
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Disconnect test equipment. 

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Install plug in exhaust pipe.

CO% Adjustment Using Test Diode|Page 2421 > < CO% Adjustment Using Test Diode|Page 2419