i was out driving this week ad the 96 Anjou was going well following a recent service. I then becam aware of her juddering under strain and when I stopped it was obvious that one cyllinder was not firing. On getting home I checked each plug and number two was not firing. I changed the plug and lead and ensured a good spark but it still would not fire. Today I had the jets out and swapped one for two half expecting that to be the problem but no No2 will still not fire.

Water level is up a bit and I had been using oil but none since the service so put that down to shagged oil. No oil in the water and visa versa. Syatem not pressurising as it shuld as I can take the cap of which may be a reason for more water in the header tamk I put some Redex Jet cleaner through with the usual blue smoke which cleared and I am getting a lot of condensation out of the exhaust, black water. No 2 plug is firing out of the car but is black when removed but not sticky. What I did notice was a whiff of blue smoke coming out opposite no 2, when the Redx was put through the air intake, above the exhaust manifold. The car stationery will fully rev and the EMU light is not on so all the sencors are fine. I have checked the wires to the injectors by swapping 2 with 3 and that was fine so the power is going to the injector

I have 2 thoughts, cylnder head cracked or gasket failure making the combustion mix contaminated &not igniting

I have not yet checked the compression which again could have gone on no2

Any ideas?