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Petrol portion map
The “Petrol portion” map offers configuration of the petrol post-injection with simultaneous gas
injector control. Configuration of petrol post-injection is made on a two-dimensional map with
an RPM and petrol injection time axes.
Figure 2.1.19
Petrol portion map
Map values specify the percentage of petrol while running on gas in a given operating curve
point. The actual petrol post-injection time is based on the map values related to the petrol
injection time in a given operating curve point.
Like on the RPM correction map, the cursor shows the engine operation curve point. Navigation
on the petrol portion map is identical as on the RPM correction map, i.e. cursor keys (← ,↑,→,
↓), SHIFT and CTRL keys can be used to select map areas and modify their values.
After modification of the petrol portion map, verify if the mixture is correct in
areas allowing petrol extra-injection.
2.1.6
Auto-calibration
Once the parameters have been set in
Parameters
window, one can proceed with auto-
calibration on the system. The mechanical components must be fitted correctly, the gas injector
nozzles must be of the correct size and the reducer operating pressure value must be
appropriate. The auto-calibration procedure has been described in detail in chapter 2.2.
