1976 280Z.  Car was given to us.  Engine just rebuilt and put back in.  Getting spark.  Fuel pump replaced with known good unit (parts car that ran). Dropping resistors measure 6 ohms per troubleshooting guide. Relays replaced  #2 injector does not measure 12V at ECU (all others do) brand new fuel filter i have pressure at the rail (loosen hose clamp and fuel sprays out). spark plugs are not wet when removed. i suspect that the injectors are not opening ti