i've got a 52 plate ford mondeo 1.8lx petrol which has developed a smoking problem initially, the emmission shot through the roof and started smoking when held at revs. i have done a compression test and all four cylinders came back with 14bar (200psi) i have serviced the engine with new filters all round and renew plugs, leads and coil pack. i have also found the vacuum actuator had detached itself and resecured it as temp measure whilst waiting for new part. i have also carried out an engine oil flush prior to filter replacement and just when i though the problem was resolved it has developed an intermitnat misfire and the white grey smoke aslo now has a hint of blue smoke..

a friend had a code reader reader which prompted the replacemnt leads and coil pack. (fault codes p0301 to p0304 which are related to cylinder misfire)

any suggestions would be much appreciated

thanks