Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 851
DME 7.8 DME 7.8 0 · 0-147P1266
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DME 7.8 DME 7.8 0
0-147P1266
409 Fuel shutoff function monitor - signal implausible
Diagnosis conditions
• Engine speed > 1,120 rpm
Possible fault cause
♦DME control module faulty
Affected terminals
-
Diagnosis/troubleshooting
Work instruction Display OK If not OK
1 Replace DME control module ⇒ Step 2
2 Perform adaptation ♦Switch on the ignition → End → End
♦Wait one minute
♦Do not press the accelerator
♦Switch off the ignition for at
least 10 seconds
♦Read out the fault memory
2470 P1266 0-147 page 1
Printed in Germany, 2000 p1266
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