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owners manual Volvo 940
owners manual Volvo 940 - year of production: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 - Volvo 940 owners manual EN
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from owners manual to the vehicle Volvo 940, year of production 1990 - 1998:
1994 Volvo 940
This is a supplementary device in the exhaust system, designed to clean exhaust gases. This device is
mainly a container with a ceramic material insert, designed to let the exhaust gases pass through
channels in the insert. The channel walls are covered by a thin layer of platinum-palladium. These
metals act as catalysts, permitting a chemical action to occur without actually taking part in it. The
emission (CO, HC, NOx) content will increase if the three-way catalytic converter is damaged. Vehicles
equipped with heated oxygen sensors use three-way catalytic converters containing platinum and
rhodium.
CAUTION:
Vehicles with a three-way catalytic converter must use unleaded fuel only. Otherwise the three-way
catalytic converter will become ineffective. See "Fuel requirements".
Charge air cooler (Intercooler)
The B230F-Turbo engine employs a turbocompressor to force air into the engine inlet manifold and a
charge air cooler to cool the compressed inlet air. The resulting increase in air flow raises pressure in the
intake manifold by approx. 8 psi (over atmospheric pressure) and engine power output by approx. 46
horsepower over that developed by the normally-aspirated engine.
The charge air cooler (which resembles a radiator) is located between the turbocompressor and inlet
manifold.
pg. 8:10 Servicing (cont.)
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year of production from: 1990
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Volvo 940 owners manual
pages 182 - 188
Volvo 940 owners manual
page 185 / 202
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