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[unlucky mark mv6]

Does anyone reckon a totally knackered coilpack could have caused the problem i am having at the moment,as the wells on bank 1-3-5 were full of oil and cylinder 1 plug rusted in the bore.Problem being the lack of power and flashing eml when booting it.Also noticed today when creeping along slow,it will actuall clear for a split second,could it be a fuel problem,as i am out of ideas,and may even condider getting rid of the thing if i dont sort it pretty soon.

[Ghost]

with oil in your wells you need to change the rocker gasket mate. plug one rusted in bore sounds like water in the well, check all your hoses in the neer that they dont leek

[unlucky mark mv6]

Rubber seal on coilpack was knackered,so that would explain the water.

[Big_Roger]

Hi,
I had a faulty CPP unit on my car.  It gave me a right runaround trying to trace problem. Yes, sometimes OK then missfire, then OK, then idle bad, then clear, run OK for a week or so, then problem again.

Check the CPP unit carefilly with a magnifier, or jewellers loup or similar.

You need to inspect the noses of the HT connection to the plugs for very fine hairline cracks, or any swelling of the bakelite moulding. Also any swelling or rusting of the iron core laminations or bakelite in that area.

Also any damage to the rubber boot / sleeves that fit over the plug insulators. if these are damaged by oil they will start to track HT voltages. Any of these problems will give you trouble.

If you have had oil and /or water in the plug wells except for just a day or so, then I would say you could have a problem with the CPP unit.

If you have to get replacement, don't forget thay are "handed" units. 
I had very good service from VSC at about £60.00 for 1-3-5 unit a year ago.

HTH
Roger