over fueling

[dieselk]

Two things you should check , 1 ,the injectors are held in place with small rubber rings . which go brittle and crack , with age , allowing air to be sucked in ,past the injectors  causing a weak mixture .
2 , the injectors are still under pressure , when the engine isnt running . sometimes fuel leaks out , causing difficult starting ,and increased fuel consumption .

[Helios_Blue_Valver]

looks like it works the treat though. I best get on building one I suppose. Where did you source your parts from?

I think I have it sorted out now. I used a colortune as '6 suggested and it was pretty easy. I cleaned my K&N and then had at it. Seems to run better I'll give it a week and see what develops.

[golfvr6]

The colortune is sh!t hot, no one would believe me  :'(
Its such a simple but effective idea. I would recommend sticking a co tester on as well if you can.

[mk1]

All the parts for the meter were from Maplin electronics, chip, socket, led's,resistors, circuit board and the box all for about a ?10 .
Steve.

[golfvr6]

Yeah but you are just too good Steve  

[mk1]

Had to do something, could'nt read the colour tune easily while doing 6k revs @ 8psi .
Steve.

[Helios_Blue_Valver]

imagine not. lol. I'll get after ordering the bits then

[golfvr6]

For normal factory car or slightly modded, set the fuel/air mixture up at idle is perfectly adequate. Infact that is exactly what VAG specify from factory. If your car is like steves then its probably best to get it on a rolling road.