Heated oxygen sensors

The heated oxygen sensors monitor the oxygen content of the exhaust gases. Readings are fed into a control module that continuously monitors engine functions and controls fuel injection. The ratio of fuel to air into the engine is continuously adjusted for efficient combustion to help reduce harmful emissions.
See also:
Cargo area
Positions
NOTE
Please consult a Volvo retailer’s Parts department for the most up-to-date specifications. ...
Dimensions
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Engine compartment
1 Brake fluid reservoir
2 Relay/fuse box
3 Air cleaner
4 Radiator
5 Dipstick-engine oil
6 Filler cap-engine oil
7 Washer fluid reservoir
8 Power steering fluid reservoir
9 Expansion tank-coo ...
