Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 81
DME 7.8 DME 7.8 0 · $83 Dynamic value of the oxygen sensor
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DME 7.8 DME 7.8 0
$83 Dynamic value of the oxygen sensor
Output of the dynamic value.
Display between 0 and 5.0.
In the case of decimal output, conversion factor = 0.0195
Decimal value displayed multiplied by 0.0195 gives the dynamic
value.
$84 Oxygen sensing displacement
Oxygen sensing displacement (current share) due to pilot control.
Display between -0.05 and 0.05.
In the case of decimal output, conversion factor = 0.00039
Offset = -128
Decimal value displayed multiplied by 0.00039 minus 128 gives the
oxygen sensing displacement.
For the oxygen sensors after the TWC (bank 1/2, sensor 2),
the following TIDs are supported:
$01 Rich-lean threshold voltage
Programmed fixed value: e.g. 0.575 V.
In the case of decimal output, conversion factor = 0.005
Decimal value displayed multiplied by 0.005 gives the threshold
voltage.
$02 Lean-rich threshold voltage
Programmed fixed value: e.g. 0.575 V.
In the case of decimal output, conversion factor = 0.005
Decimal value displayed multiplied by 0.005 gives the threshold
voltage.
$07 Minimum voltage of oxygen sensor during the test
Minimum: e.g. 0.000 V
Maximum: e.g. 0.480 V
Test value: e.g. 0.280 V
In the case of decimal output, conversion factor = 0.005
Data output with a scan tool 0-3 page 17
Printed in Germany – 8, 2002 dsc_dm78
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