First off, i've searched and am using this diagram http://www.mobstyle.com/crx/ecu_pinouts2.asp

Im trying to find the right wire to get a rpm reading. I have connected to both pins b15 and b17 and havent gotten anything out of them. am i using the wrong pin or is something else messed up?

thanks in advance!!!

 

the tach signal comes from the blue wire at the 2-wire connector at the distributor - the blue wire ends up at the gauge cluster, not the ECU

 

ok for a rpm reading just go to the back of your gauge cluster