You should compare your LPG FC vs. your Petrol FC. Expect up to a 10% increase in LPG FC, compared to Petrol. I'm assuming you're using an EROOM kit (based on the roll-call thread)?
Again, if you are indeed using EROOM, you should switch fuel (petrol-to-lpg or vice-versa) when over 2000 RPM. If you're cruising at 40km/hr with your foot off the gas pedal, mamamatay nga yan. You need to rev it when switching.
According to Denso, the auto-switch function will do 2 things:
- start the car with petrol (tried and tested)
- automatically switch to petrol, when LPG is empty (never tried this - I always fill up when the red "E" light starts flashing)
EROOM user here. Very satisfied customer.





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