DME 7.8
P0448
96 EVAP canister shutoff valve (output stage) - over limit
Diagnosis conditions
- Engine running
- Battery voltage greater than 7 V
- Fuel tank ventilation active
Possible fault cause
- Wiring harness
- DME control module faulty
NOTE: Fuel tank ventilation can be activated with the Porsche System Tester 2 in the 'Short test' menu.
Affected terminals
Terminal IV/30
Diagnosis/troubleshooting
96 EVAP canister shutoff valve (output stage) - under limit
Diagnosis conditions
- Engine running
- Battery voltage greater than 7 V
- Fuel tank ventilation active
Possible fault cause
- Wiring harness
- DME control module faulty
NOTE: Fuel tank ventilation can be activated with the Porsche System Tester 2 in the 'Short test' menu.
Affected terminals
Terminal IV/30
Diagnosis/troubleshooting
