Yes, bigger injectors (750cc) and also had the EPROM changed. ECU didn't show any codes. Now with OEM plugs, all is well.
:if bigger did you get your EPROM in your computer changed?...also if it is running rich pull the spark plugs out and turn the key on and look in each cylinder and see if there is fuel dripping in the cylinder and laying on top of the pistons...you may have a pinched O-Ring