Hello I am trying to finish my ef build did a b20v swap in it and not I am trying to fix my gauge cluster i replaced it with an si gauge cluster hoping the stock dx cluster is the problem why speedometer is not working but after I swapped the si gauges the check engine lights keeps glowing and tried to diagnose the error code it aint blinking and speedo and rpm gauges still not working any advice to solve my problems? and what parts needed to fix this mess?