Service manual

Acceleration enrichment
During acceleration (sudden opening of the throttle) significant pressure change takes place in the intake
manifold thus an air flow, which leads to a temporal reduction of the mixture and the impression of a non smooth
car acceleration. In order to prevent this from happening acceleration enrichment is used.
It is calculated from the speed of changing the angle of throttle position sensor, the current angle of the throttle
opening and the current engine revolutions.
The configuration parameters can be found in the Enrichment/Acceleration enrichment/Parameters… menu.
dTPS Threshold(%)
dTPS value (the speed of changing the opening angle of the
throttle) below which the mixture is not being enriched.
Sustain Rate
The speed of decreasing acceleration enrichment per each
engine cycle.
AccEnrichment = prevAccEnrichment * Sustain Rate
Enrichment Limit
Maximum percent of mixture enrichment.
MAP sensor based enrichment
By using this option, we activate enriching after changing the absolute pressure in the sucking manifold.
However we strongly recommend using TPS based
enrichment. The basic enrichment map is the Acceleration
enrichment dTPS rate table (menu Enrichments/Acceleration
enrichment/Tps rate table...).
It determines enrichment amount (in %) in the function of
the speed of changing the TPS value (dTPS). The bigger the
throttle angle change, the bigger should the enrichment be.