owners manual Volvo DL GL Turbo

owners manual Volvo DL GL Turbo - year of production: 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993 - Volvo DL GL Turbo owners manual EN

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text version of content this owner's manual page from owners manual to the vehicle Volvo DL GL Turbo, year of production 1974 - 1993:

1985 Volvo DL, GL and Turbo often when driving under dirty and/or dusty conditions. The filter cannot be cleaned and should always be replaced with a new one. Checking and adjusting idle speed Your Volvo is equipped with an electronically controlled idle speed system that requires no period checking or adjustment. TM Lambda-sond (oxygen sensor) system This is an emission control system designed to reduce emissions and improve fuel economy. An oxygen sensor monitors the composition of the exhaust gases leaving the engine. The exhaust gas analysis is fed into an electronic unit which continuously influences the amount of fuel injected. This adjusts the air- fuel ratio to provide optimum conditions for combustion and efficient reduction of the three major pollutants (hydrocarbons, carbon monoxide and nitrogen oxides) through a 3-way catalytic converter. pg. 57 Servicing Turbo models: Change oxygen sensor unit. Reset service indication for oxygen sensor. The oxygen sensor must be replaced every 30,000 miles (50,000 km). To remind the driver about the change of the oxygen sensor unit there is a special reminder light (see section titled "Warning lights".) The light will stay on until reset. Note: Failure to follow the recommended maintenance may result in vehicle not meeting Federal or state emissions standards. DL and GL models: On the B230F engines, the oxygen sensor (Lambda-sondTM ) is electrically heated. The use of a PTC (Positive Temperature Coefficient) element to heat the Lambda-sond ensures a shorter warm up time and continuous operation at its working temperature. TM This type of Lambda-sond does not require periodic replacement and therefore the Lambda- sondTM reminder light is not connected. file:///K|/ownersdocs/1985/1985_DL_GL_and_Turbo/85240_03a.htm (14 of 18)12/30/2006 7:49:16 AM

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year of production from: 1974

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