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 deg.C (59 deg.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