Technical Inyectors Colour Sedicivalvole 1.8

[Lùcho]

I have a 1.8 16V Tipo. Fuel consuption is high. It has 3 green Weber injectors and one red Weber injector. Also I founded that the potentiometer in the throtle body has been modyfied a litle so it can be rotated some degrees more than what normally could. Is rotated in the way that it sees less air going inside that what normally would.
Also the red injector looks to be an older model than the green ones (car in 1990).
So my final guess is: What do you think? What I should do?
The original inyector are like the red ones, some stupid before changed only 3 of them.
Green injectors let more fuel through.
Throtle body potentiometer has been modified in order to try to compensate for the more fuel flow of the green injectors.

How should this potentiometer be tuned? Normally....

I see difficult and expensive to get 3 red injectors, so I think of getting another green.

btw. Injector are now been cleaner and flow measured.

Thanks In advance!!

 

[Lùcho]

I opened the throtle potentiometer ("PB09" is written on it...) and seem OK. Not altered. But:
It has tree contacts.

-Earth
-Fuel Cut Off
-Full throtle

The potentiometer is OK for Fuel Cut Off (It makes contact when idling), but at full throtle it does not reach Full throtle contact. What shoul I do? I´m missing full power in my case?

Cheers