i just swaped a b18b in my da9. the caar ran rich before the swap but the new motor runs horrible at idle. its a brand new motor and it runs really really rich, im running the stock pm4 ecu and i cant find out how to adjust the mixter. can anyone help me out?

 

cam timing at TDC and distributor set accordingly? if it runs horrible at idle sounds like your timing is off a tooth

 

double check all the sensors. it may sound too simple to be the problem but make sure that everythings plugged in where it should be.