Hello. I own an RB25DET swapped 1989 240sx and I've been having trouble with the speedometer. Whenever I'm driving, it seems to work, but it only works up to roughly 15 mph. Also, the oil temperature and fuel do not have any readings. The lights such as seat belts, fuel lights, door lights, etc. work correctly. The tachometer and lights seem to be the only working thing on the instrument panel.

Thanks, Jason.