3sge over fueling and miss fire

[adzmr2]

Ok so my engine is running, but

Its overfueling like a "censored"

So far i've replaced the coil, leads dizzy cap and rota arm, plugs and temp sensors

Still the same

Where do i go next?

There seams to be quite low vacuum as in pull a pipe off and hardly anything sucking, so wondering if this is causing the map to pump in more fuel?

Or could it be a dodgy injector? Im getting no fault codes unless i disconnect the vac to the map

Help, i need to get an mot :crybaby:

My engine is a combo of rev4 block, rev2 head and rev3 inlet and throttle body

[fingers99]

For vacuum, Google will throw up a lot of stuff. Perhaps the most useful bit of kit are the mityvac alikes (also good for bleeding brakes, starting syphons, etc.). This

http://www.secondchancegarage.com/public/186.cfm

is cool.

But timing?

How do you know, exactly, that it's running rich?

[MartinF]

What ECU and Injectors are you using?

Are the plugs black when you pull them?