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01 ENGINE 10 Direct Injection Fuel injectors are mounted inside the combustion chamber like spark plugs Fuel is injected directly into the cylinders Fuel pressure is much higher: 410 to 1885 psi Fuel atomizes completely into a stratifi ed charge DISI 2 fuel pumps In-tank electric pump 60-71 psi Camshaft driven mechanical pump 410-1885 psi Direct injection allows complete atomization and the fuel vapor X production temperatures Catalyst lights off quicker: within 40-seconds of starting, the HC 1. 2. 3. 4. • • • • • |