Engine Control
| Designation | 997 | 997 S |
|---|---|---|
| Engine control unit | Bosch ME 7.8 | |
| Ignition | DME, individual spark coils, knock control | |
| Firing order | 1-6-2-4-3-5 | |
| Spark plugs | Bosch FRG 5 KQEO | |
| Electrode gap | 1.6 ± 0.05 mm | |
| Electronic throttle | Electronic throttle actuator control via DME | |
| USA-LEV trim | On-Board Diagnosis II (OBDII) | |
| Euro 4 | Euro-On Board Diagnosis (EOBD) | |
| Euro 2 | Customer service - OBD I | |