The tachometer on my 1998 S14, like most S14s, had a mind of it's own. In this video I will show you how to fix the infamous S14 tach problem on your 240SX, 200SX, or Silvia. This problem is also found on other various Nissans of the time such as the R33 Skyline. The same procedure should work for those as well (the circuit boards are almost identical). If you have any questions leave them in the comment section below and I will try to answer them.
