System Description: Description
ECM controls fuel-air mixture to the rich side to achieve quiet and stable engine revolution.
| A | Enrichment rate |
| a | Start |
| b | Start of post-start enrichment |
| c | Start of warm-up enrichment |
| t | Time |
| t1 | Starting mixture enrichment (Duration: 2 seconds) |
| t2 | Post-start enrichment control [Duration e.g. 15 seconds at coolant temperature of 15°C (59°F)] |
| t3 | Warm-up enrichment control (Duration depends on the coolant temperature) |
Cold starting mixture enrichment control has functions as follows.
- Starting mixture enrichment control
- Post-start enrichment control
- Warm-up enrichment control