Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 70
DME 7.8 DME 7.80 · 0 0 0 0 0 0 1 0
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DME 7.8 DME 7.80
0 0 0 0 0 0 1 0
7 6 5 4 3 2 1 0 Bit
Bit 0 Open-loop control; the conditions for oxygen sensing
are not yet fulfilled.
Bit 1 Closed-loop control; the signal from the oxygen sen-
sor is used to control injection.
Bit 2 Open-loop control through conditions such as full load,
etc.
Bit 3 Open-loop control due to fault in system.
Bit 4 Closed-loop control, but faults from at least one oxy-
gen sensor.
Bits 5 to 7 not used.
Note!
Only one bit at a time can be set to 1 to indicate the status.
$04 Calculated load value
Output of calculated load as a percentage of the maximum load.
Display between 0% and 100%.
In the case of decimal output, conversion factor = 0.3921568
The decimal value displayed multiplied by 0.3921568 gives the load
as a percentage.
$05 Engine coolant temperature
Output of the momentary engine coolant temperature.
Display between -40 °C and 215 °C.
In the case of decimal output, conversion factor = 1
Offset = -40 °C
Decimal value displayed multiplied by 1 minus 40 °C gives the cool-
ant temperature.
$06 HO2S integrator, bank 1
Output of the control value FR of the oxygen sensor closed-loop con-
trol, bank 1.
0-3 page 6 Data output with a scan tool
dsc_dm78 Printed in Germany – 8, 2002
This is a source reference. Confirm exact model applicability in the original material.
