with the link ecu firing all 4 injectors at once, under full load i get my fuel pressure jumping up and down by about 20psi. this can be solved by using a damper as some factory cars have and my r33gtr fuel pump also has but is not big enuff and could be at the rong end of the car also.
What i want to know is can this cause intermitant lean spots if the fuel pressure isn't back up were it's ment to be when the injectors fire again?

anyone had this problem?

The guys how tuned my car to start with said it won't affect its afr but im not convinced.
This activity was seen with the car on a dyno.