HI all i spoke to soon when i said car was running OK. up to now fitted the synergy2+ had a service cleaned the pcv fitted egr bypass, when i first start the car cold i get a bit of blue smoke this clears then when engine is warmed up i sometimes get a lot of blue smoke and sometimes i get a lot of black smoke coming out of the exhaust. I rang roveron today and explained the situation. I explained that i have ordered a set of silicone hoses and he has told me that if it is still the same when i have fitted the hoses to fit a pierburgh maf sensor. to be honest i think that i have tried fixing something that aint broke,and made it worse 