Hallo!!

My car only works on LPG.
I have the program to change the LPG injection times.
But every change ... I have problems with the minimum.
How do you get control of engine idling?


Thanks!!

 

Here's how the X300 controls the engine idle speed on gas:

The throttle body has a special passage that allows air to bypass the throttle plate. The idle air control valve (IACV) is a stepper motor the opens and closes that passage, thus bringing RPMs up or down by controlling how much air gets into the engine. The engine ECU monitors the RPM by watching the frequency of the crankshaft position sensor signals and commands the IACV to open or close as necessary. If the RPMs start to sink, the ECU will command the IACV to open up the passage and let more air in, thus bringing the RPMs higher.

Do you have idle problems while running on Gasoline? I would first try to make sure that the car runs perfectly on gas, then look into LPG.

 

Thank you for your valuable response!

Preconditions:

* I have a plant VIALLE branded LPG on the machine, liquid injection.
* I anticipated the phase by crank sensor bracket (DIY)
* I have a one lambda connected on all six cylinders (the other was too slow). All
injectors operate with the same timing.
* The petrol tank I have taken off (to save on taxes in Italy).

"Do you have idle problems while running on Gasoline?"

When it worked even gasoline, only a cold, in deceleration tours they descended rapidly below 600 rpm (the engine tended to fade) ... then the compensated unit.
The operation was much more regular hot.

LPG (cold / hot engine), the car is fine ...

I notice that when I change the injection timing or the phase of the motor, I have problems with the minimum...