the starter motor is cranking it over.
there is spark from the plugs.
there is fuel coming out of the inectors when i turn the ignition(took them out of the plate)
but it wont fire
timing is fine
ive changed the metering unit although understand this could still be at fault. should I swap the cold start over from my other inlet which worked and see if this helps or will it make no difference if it isnt firing after lots of attemts(must have been enough fuel there)

and help from mfi experts would be welcome as the car is at home while im at uni and i have no transport and trains suck