Fuel Computor

[Mel]

Firstly, Hi to everyone. I hope u all speak English better than I speak German, registering was a bit of a shot in the dark for me!!

I have a c20let, with phase 1 , FMIC, and recently an uprated fuel pressure regulator. My question is :-
As the fuel presure has been increased, am I right in saying that the fuel consumption displayed by the computor is now inaccurate? Is the consumption calculated by using the % duty cycle of the injectors, which will now be open for less time as there is a higher pressure? Or, is the higher fuel pressure only reached when under high boost . IE , at light throttle openings is the fuel pressure the same as with the original regulator.
The regulator is a weber 3.5 bar with a boost pressure/vacuum connection.

Cheers,

 

[ASH]

Hi !

The computer only measures the injection time related to the vehicle speed !

If you change the fuel pressure your enconomy value will be wrong !

But no problem , dont worry !

regards ASH

 

[Mel]

Thanx Ash,

I thought thats how it worked. Is there any way to reprogramme the computor? I hate having gizmos that don't work properly.

Alternatively, I could just leave it on the outside air temperature.

Cheers,

 

[Erhard]

Hi,

Mel nimmt mir die Frage aus dem Mund, das gleiche wollte ich dich auch schon fragen. Wäre schön wenn der Compi wieder etwas genauer ginge, weniger wegen der Verbrauchsanzeige sondern wegen der Reichweitenanzeige.

 

[Russ]

Mel, you can trim how much the fuel computer thinks is in the tank, but thats it.
AndyK's pages tell you how.

 

[Mel]

Thanx Russ, I'll have a look.