owners manual Honda Prelude

owners manual Honda Prelude - year of production: 1987, 1988, 1989, 1990, 1991 - Honda Prelude III 3 owners manual EN

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text version of content this owner's manual page from owners manual to the vehicle Honda Prelude, year of production 1987 - 1991:

Main Menu ▲ ▼ Evaporative Emission Control System The Evaporative Emission Control System is designed to prevent fuel vapors from escaping into the atmosphere. (2.0 Si,Si) Fuel vapors from the fuel tank are directed into the charcoal canister where they are adsorbed and stored while the engine is stopped or idling. When the coolant temperature rises to a certain value, the vapors are drawn into the engine through the throttle body and the intake manifold during normal engine operation. (2.0 S) Fuel vapors from the fuel tank and carburetor are directed into the charcoal canister where they are adsorbed and stored while the engine is stopped. When the engine is running and engine coolant temperature is above the set temperature of the thermo sensor, the purge control diaphragm valve is open so that fuel vapors in the charcoal canister may be drawn into the engine through the carburetor and the intake manifold. Engine Exhaust Controls The engine exhaust emission control systems are designed to control combustion during idle, acceleration, cruise, and deceleration. These systems are entirely separate from the crankcase and evaporative emission control systems described previously. HONDA PGMFI System (2.0 Si,Si) The PGMFI system consists of three independent subsystems; Air intake, Electronic Control and Fuel Control, thus allowing more accurate control of air/fuel ratios under all operating conditions. The Electronic Control Unit (ECU) detects the amount of air drawn into the cylinders and determines the amount of fuel to be injected to provide the optimum air/fuel ratio for all engine needs. (cont'd)

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year of production from: 1987

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