yar car which had this engine(nissan expert) didn't had rpm meter, but rpm signal is going to the auto transmission, i took that, that's a switch to ground signal for every spark, than modified the rpm meter, which runs of the coil/distributor, and alhamdulillah it worked, just installed it. following are the videos and pics of the process.
//youtu.be/http://www.youtube.com/watch?v=-KV02MTtcvE
//youtu.be/http://www.youtube.com/watch?v=iBd1gm6Ajco


