ME-SFI Post-Start Enrichment Function

After a cold start the fuel-air mixture is enriched for a short time to ensure that the engine runs smoothly.

Post-start enrichment is dependent on:
- Coolant temperature at start
- Time after start
- Selector lever position
- Correction programming with STAR DIAGNOSIS

Post-start enrichment compensates for the fuel which precipitates on the cylinder walls. The fuel-air mixture is enriched sufficiently until a certain engine speed is stabilized (e.g. 1500 rpm if no gear engaged at - 30 °C coolant temperature for about 30 s).







AT control module position/task/function
- Information on selector lever position P/N and gear engaged
- Model 170, 202, 208, 210
- Model 203