I have been searching for hours and have not gotten any solid answers.I put an obd2 gsr swap in my ej1(ex) I used an obd1 p72 ecu.The motor starts right up with no problem and idles well but my tach and speedo do not work at all,I have been reading about having to repin the dizzy but I'm not clear as to what wires to mess with.Also vtec is not engaging I also read about having to rewire vtec from the shock tower harness to the ecu and again I'm not clear as of what wires to rewire.Can any one point me to the right answers?

 

do some reading here..
http://technet.ff-squad.com/index.htm

 

No speedo = no vtec.

Check engine light on?

What distributor?