Warming-Up Control

Enrichment Duration:

t1 Start enrichment (duration e.g. 2 seconds)
t2 Post-start enrichment (duration e.g. 2 seconds)
t3 Warming-up phase (duration depending on coolant temperature)
A Enrichment rate
a Start
b End of start, commencement of reduction of post-start enrichment
c End of post-start enrichment, commencement of warming-up phase control