KMS Fuel/FA23 manual
Version 3.01
11
3.2.4.1.4
Start-up
When the engine is started, a certain
quantity of extra fuel (in most cases
dependent on the coolant temperature)
will have to be injected to ensure proper
firing of the engine. There is a possibility of
giving a start-up injection impulse and
start-up enrichment. The start-up injection
impulse is given once, at the moment the
second crankshaft signal is registered.
After the start-up injection impulse, the
injection periods shown in the injection
graph will be adhered to. As long as the
engine speed is lower than 500 rpm, the
quantity of injected fuel shown in the first
row applies. Proper firing of the engine
often requires more fuel (depending on
coolant temperature) than the quantity
needed when the engine is already running
at the same engine speed. This extra
enrichment can be entered in the table for the duration of a number of crankshaft rotations. There
are four coolant temperature ranges for which an enrichment table can be completed. The
additional enrichment (%) in the table can be set during the input of the rpm range. An enrichment
map and a startup-pulse can be filled in for four coolant temperature ranges. Above the highest
temperature the normal startup pulse will be used.
