Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 104
DME 7.8 DME 7.80 · $31 Shift in oxygen sensor characteristic towards lean
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DME 7.8 DME 7.80
$31 Shift in oxygen sensor characteristic towards lean
Minimum: e.g. 0.00 s
Maximum: e.g. 1.20 s
Test value: e.g. 0.00 s
In the case of decimal output, conversion factor = 0.04
Decimal value displayed multiplied by 0.04 gives the time.
$32 Averaged period
Minimum: e.g. 0.00 s
Maximum: e.g. 3.00 s
Test value: e.g. 0.40 s
In the case of decimal output, conversion factor = 0.04
Decimal value displayed multiplied by 0.04 gives the time.
Mode 6
The test results of components or systems which are not continu-
ously monitored are output in mode 6. At the same time, limit values
are provided. The test results are referred to as TIDs (Test Identifi-
cation). The components or systems are distinguished by
CIDs (Component Identification).
The following components or systems are supported:
TID $01 Catalytic converter monitoring
The catalytic converters (bank 1/bank 2) are monitored individually
and for the sum of the emissions. There are two threshold values
for individual monitoring:
♦AHKATMN for the OK detection and
♦AHKATMX for the defect detection.
For the sum of the emissions, there is the AHKATSB threshold
value. A number (ahkat) which is between 0 and 1 is used as a
measure for the aging of the catalytic converters.
0 - good
0-3.1 page 18 Data output with a scan tool - 911 Carrera (996)
dsc_FL78 Printed in Germany – 8, 2002
This is a source reference. Confirm exact model applicability in the original material.
