Please can anybody help me, W reg 1.4 16v ABU tyre engine, light on running on 3 cylinders, this happened in 09.2008, new plugs,leads.coil pack fitted no good, machanic pluged in reader, low compression No.2 cylinder, did something to the car O.K. till now. light on, compression test cold - hot all O.K.injector taken from 2 to 3 problem still there, all injector wires checked all O.K. runs on tick over for 5 mins on all 4 then goes to 3, daughters car , stuck in Canterbury, must get it right, please help.

Ramroddy

Is the problem still only with the no2 cylinder when everything bugs up and the fault code reader is plugged in?

Yes