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Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 122

DME 7.8 DME 7.80 · large valve small valve lift

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DME 7.8 DME 7.80 large valve small valve lift Inlet opens 9° after TDC 39° after TDC Inlet closes 61° after BDC 19° after BDC Exhaust opens 50° before BDC Exhaust closes 4° before TDC Engine cooling Type Liquid cooling, two radiators (Tiptronic additional radiator) two electric fans, two-stage control Engine lubrication Type integrated dry sump lubrication Oil cooling via oil-water heat exchanger Oil pressure n=5,000 rpm Approx. 6.5 bar at 90 °C Oil consumption Up to 0.5 l/1,000 km Emission control EURO II Oxygen sensing with 2 sensors before the cata- lytic converter, 3-way catalytic converter system with one TWC each on the left and the right (RoW) EURO III Additional secondary air system and sensing after the TWC (4 sensors) European OBD USA LEV OBD II + ORVR Oxygen sensing and sensing after the TWC (4 sensors), 3-way catalytic converter system with one cascade catalytic converter each on the left and right (with two metal carriers), secondary-air system, OBD II and ORVR Fuel system Fuel injection ME 7.8 (digital engine electronics) Triggering of injection sequential Fuel supply 1 electric pump, non-return 0-5.1 page 2 Engine specifications msp_dmFL Printed in Germany – 8, 2002

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