Hi i"ve checked the filters in ocv"s and they are really clean, have also tried powering the ocv"s sepperatly and they both work, problem seems to be that the ocv"s are powered all the time and it is the negitive that is switched but by pluging a led into the ecu plug c pin 23 it shows that it is not switching so don"t know why??? i"ve had the lift bolts replaced so thats not the problem.i really just need to know if the ecu switches to allow the oil flow to operate the vvti or should there be oil pressure at the solinouid all the time ?? Thanks again. Really want to get this sorted as i"ve spent a lot of time on this car, i"ve made carbonfibre doors and bonnet and a 1 piece fibreglass backend that hinges at the roof so no steel guards and it weighs 850kgs, also has the full TRD gear kit so should be a real wepon.