DME 7.8 DME 7.80 · ♦Monitoring of catalytic converter efficiency

DME 7.8 DME 7.80 ♦Monitoring of catalytic converter efficiency ♦Monitoring of tank ventilation system ♦Monitoring of tank system for leaks ♦Monitoring of secondary air injection ♦Monitoring of adaptation limits (e.g. of oxygen sensor closed- loop control, boost pressure control) ♦Monitoring of oxygen sensors ♦Monitoring of thermostat and water temperature sensor ♦Monitoring of positive crankcase ventilation (via oxygen control adaptation) ♦Monitoring of Tiptronic transmission control unit ♦Monitoring of emission-relevant sensors and actuators used in conjunction with DME (earlier OBD 1 scope) ♦Activation of Check Engine lamp and fault storage ♦Display of inspection readiness (readiness codes) ♦Output of fault codes present ♦Storage of defined operating parameters in the event of a fault (incl. freeze frame) ♦Functional tests of OBD system (warm-up cycle, driving cycle) ♦Communication with a standardised control module tester (scan tool) in the specified modes (see chapter "Fault output using a scan tool") ♦Standardised output of operating data such as engine speed, temperature etc. The digital engine control module DME 7.8 The DME 7.8 is a proven and highly reliable engine control module, which has been specially adapted to Porsche requirements. In the event of an open circuit in the voltage supply 'terminal 30', the following values are deleted from the control module: ♦All fault memory entries ♦Stored freeze frames of the faults (for environmental conditions, see the next chapter) ♦All adaptation values ♦The learned values of the throttle adjustment unit ♦Ready statuses of individual diagnosis routines (see next chap- ter) Please note that programming the DME control module (e.g. read- ing in a new data record) also deletes the values referred to above. 0-PEIN page 2 2470 INTRODUCTION PEIN2DME78 Printed in Germany – 14, 2003