What Causes Over Fuelling in a1993 K11 1.3

Hi having trouble and spending a lot of money trying to finf why my K11is over fuelling replaced all the usual electric stuff taken it to a couple of garages but they don't like me have a clue any advice appreciated.
 
Hi having trouble and spending a lot of money trying to finf why my K11is over fuelling replaced all the usual electric stuff taken it to a couple of garages but they don't like me have a clue any advice appreciated.
Injectors
Fuel pressure regulator
Air temp sensor
water temp sensor
Air flow meter

Is it over fueling or is it not burning all the fuel? What is the compression like? what does it run like? Does it have an air leak as this can cause over fueling.

This is all guess work when you do not have a car in front of you Hope this helps
 
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