Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 94
DME 7.8 DME 7.80 · In the case of decimal output, conversion factor = 0.78125
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DME 7.8 DME 7.80
In the case of decimal output, conversion factor = 0.78125
Offset = -100 %
Decimal value displayed multiplied by 0.78125 minus 100% gives
the HO2S adaptation value.
$0C Engine speed
Output of the momentary engine speed.
Display of engine speed in rpm.
In the case of decimal output, conversion factor = 0.25
Decimal value displayed multiplied by 0.25 gives the engine speed.
$0D Vehicle speed
Output of the speed currently travelled.
Display of speed in km/h up to a maximum of 255 km/h.
In the case of decimal output, conversion factor = 1
$0E Ignition timing, cylinder 1
Output of the ignition angle of cylinder 1.
Display: After TDC up to -64° crk
Before TDC up to 63.5° crk
° crk - degrees on crankshaft
In the case of decimal output, conversion factor = 0.5
Offset = -64 °crk
Decimal value displayed multiplied by 0.5 minus 64 °crk gives the
ignition timing.
$0F Intake air temperature
Output of intake air 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
intake air temperature.
0-3.1 page 8 Data output with a scan tool - 911 Carrera (996)
dsc_FL78 Printed in Germany – 8, 2002
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