hi all, i have 93 r33 gtst. im havin a few problems with it at the moment and cant work out whats wrong. first of all. when im cruisin around the oil pressure seems to go up to 8kg/cm or higher. im changed oil and oil filter but still the problem remains. has anyone had similar problems? problem 2 i seem to have a very rough idle at times to the point where it stalls, also when accelerating moderately it seems to stutter and go no where just as i start to compress. under heavy accel problem does not accur