One option may be to PM the person in the quote below:I've decided im tired of not having a tach, and plan to put a cheapo sunpro super tach 2 in my 1992 ka24e 2wd hardbody.
I was just wondering if anyone could tell me the red-line of my engine and maybe what i need to connect the tach wires to? thanksssss
The other option could be to try these links:If anyone ever needs any wiring diagrams of any sort, I have EVERY SINGLE ONE. I have S13A, S13B, and every year of S14 (they changed every year). I even have SR20DET.