Ignition Control Module
Spark Advance Data| Spark Control Computer | 4289340 | 4289344 | 4289348 | 4289354 |
| Vacuum Advance (Range) | --- | --- | --- | --- |
| Accumulator Time (In Minutes) | --- | --- | --- | --- |
| Spark Advance Test @ 2000 RPM | 51 +/- 4 Degrees (deg) | 51 +/- 4 Degrees (deg) | 41 +/- 4 Degrees (deg) | 41 +/- 4 Degrees (deg) |
| Electronic EGR Time Delay | 20 sec | 20 sec | 30 sec | 30 sec |
| Oxygen Feedback Electronic Air Switching | Equipped | Equipped | Equipped | Equipped |