Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 710
DME 7.8 DME 7.80 · Do not exchange oxygen sensors ahead of catalytic converter and
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DME 7.8 DME 7.80
Note!
Do not exchange oxygen sensors ahead of catalytic converter and
after catalytic converter.
Oxygen sensors ahead of and after catalytic converter
1 - Oxygen sensor ahead of catalytic converter
2 - Oxygen sensor after catalytic converter
1
2
5 Oxygen Sensor Heating Ahead of TWC, Bank 2 –
Above Limit
Diagnosis conditions
• Battery voltage between 9.5 V and 16 V
• Time elapsed after engine start-up greater than 10 seconds
Possible fault cause
♦Short circuit to B+
Affected terminals
II/13
Diagnosis/Troubleshooting
0-109 page 6 2469 P1119
p1119 Printed in Germany – 2, 2000
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