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So do carbureted engines from 1980's to 1990's waste petrol/gasoline when engine brake/ downshifting? Take the lancer 2nd generation for example, does it have a valve that shutts off fuel from the carb to the engine? Or tldoes the engine forcefully suck in fuel to the engine and waste it. Also does it mean that we should coast to neutral when stopping? Thanks alot.
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