Operation CHARM
: Car repair manuals for everyone.
Home
>>
Porsche
>>
1999
>>
911 Carrera Coupe (996) F6-3.4L
>>
Repair and Diagnosis
>>
A L L Diagnostic Trouble Codes ( DTC )
>>
Testing and Inspection
>>
P Code Charts
>>
P1508
P1508
P1508
408 Torque comparison function monitor - signal implausible
Diagnosis conditions
-
Engine speed greater than 1,120 rpm
Possible fault cause
-
DME control module faulty
Diagnosis/troubleshooting