craz4240 wrote:Not really a hard thing man if you wired it in properly...then check the plugs.
rb20 has a cable driven speed sensor...I know the s14's have electric pretty sure s13's do as well,hence what you have to do is replace the rb speed sensor with the 240'sx speed sensor.jrd450r wrote:Correct me if im wrong but I belive the RB20 has the same speed sensor as the KA so it should wire up and work fine. On the other hand with the rb25, its not that easy, Ive still yet to get my rb25 speedo working, I havent tried fixing it yet but simply just wiring to the 25 sensor, it does not work properly.