The glitch is no more!

And the LPG fuel level indicator goes "bip bip bip" as the system switches to petrol as the LPG runs (near) empty.

This was achieved with a new software update made to the system control unit that finally solved the problem. One thing is left to check later, the fuel reserve, to little and the system will not switch to petrol when out of gas, to much and the Corolla will be running to the LPG station far to many times.

Driving home that day, the engine seemed more "smooth" than the usual for the past few months, as I was told by the man that made the update, that was natural since the new software not only had the correction for the fuel level problem, but also had some other minor corrections made.

Still not working

One more try and still the LPG system doesn't automatically switch to petrol when running low on LPG. A new electric-valve was fitted and plugged to the system but at the test-run to the petrol station nothing happened, had to manually switch to petrol to avoid the engine hiccuping its way to destination.

Actually this is something that doesn't bother me much, everything else works perfectly, and I pretty much never let the LPG tank go dry, it is barely a annoyance.

Still not switching

After readjusting the tank level by means of software update the system still doesn't switch form LPG to petrol when the LPG tank goes dry... let us wait a little more for a definite solution to this.

At this point, a little over 5000km running on LPG, the commuting expense dropped 46.8%, still need something like 38750km to break-even.

Service of the LPG system

The only service required to a liquid injection system is made after the 1500km mark.

This service consists in various leakage checks and the correct functioning of the LPG ECU and fuel tank pump.
Since nothing was deemed wrong, the Corolla got up and running with only one single remark. It doesn't automatically switch to petrol when the LPG thank goes dry.

This should be solved with a ECU software update from Vialle itself... so we wait.