cluster???

so i was helping a friend install a new gauge cluster in his gsr da and he had got a ls da cluster and now he said vtec isnt kicking in??? the speedo isnt working but idk if the old one did either because the needle had broken before he bought it… if the needle is too low past the 0mph will that cause it not to work?? and if the speedo isnt working would that cause vtec not to kick in??

Check to see if the speed sensor is hook up properly.

Also make sure the speedo cable is in the correct position and fitted properly. If it’s loose, the needle won’t move.

i forgot to put the speed cable in thanks for the help… but as far as the right position how would i know if its in rightand if it isnt how would i know? the speedo moves and now the odometer is as welll it was a pain getting my hands back there and shoving it in…