Car brought in by RAC hard to start wont rev up clean and engine smokes badly. Scanned system and only 1 code sensor 1 oxygen sensor fault. we have replaced that. Seems like plugs are fouling up.temperature sensor readings are OK. There seems to be a lot of crankcase pressure when oil filler cap is removed. Car fills workshop with what seems to be oil smoke.possibly a blocked breather?any advice would be grateful.

>>> only 1 code sensor 1 oxyen sensor fault. we have replaced that <<<

What testing was done between the code read and relacing the part ?

Mark

engine code would help 1.4 16 valve not enough info

hi paul,have you checked that it is not full of diesel

FIXED

Sorry its taken so long to respond as weather as held us up a bit. You were right David we did drain tank and yes there was diesel in with the petrol. Strange as when we removed injectors it smelt like petrol. Car belongs to a elderly lady and she says she has not put diesel in but some one did. Also where it had been trying to run on a mixture of petrol and diesel it has damaged the cat.

Thanks again for your help.