www.head-tech.co.uk

I have a Lexus RX300 3.0l 24 valve in on start up from cold it smokes quite bad (white and sightly blue) runs for about 5 minutes then totaly clears. It seems to run fine not using water doesn`t seem to be using oil. Thought to start with stem seals but not sure doesn`t seem to do it all the time. I`ve pluged it in to my solus pro and on the eobd its bringing up P1135 i`ve looked it up and says air fuel (a/f)ratio sensor 1, bank 1 heater circuit malfuction. Does anyone know if this would cause the smoke

Thanks