Ignition · Ignition and Tune-Up
| System | Ignition and Tune-Up |
| Subsystem | Ignition |
| Years | 1972–1977 |
| Vehicles | 911T/E/S |
| Confidence | Factory Verified |
Source: Porsche 911 Workshop Manual, Specifications section ("Type 911 Specifications - Beginning with 1972 Models", Electrical System table), page 973