well i took my car to get it re-tuned and its running really lean anything past 5k rpm's, it is losing fuel pressure @ the filter. Its 52 idle and 60 WOT but drops down to 50, then 40 etc as the rpm raises past 5k-9k'.

00 jdm itr motor
msd ignition w/cap/rotor/coil etc
i/h/e
skunk 2 stage 1 cam
skunk 2 cam gears
not sure on the fuel pump, "harley?"
stock injectors
hondata s200 w/chipped p28 ecu
aem fpr

tuner says no matter what percentage of fuel he adds to the tuning the fuel pressure drops dramatically and dangerously, he says the injectors are also at 85% as it is....

you can see the pressure drop @ the filter on the guage'.....

i tried replacing the aem fpr with a stock itr fpr and it still runs lean, i also replaced the fuel filter.......would a fuel pump cause this? I was told a fuel pump usually wont just lose pressure it would completely stop functioning. A buddy reccomended using bigger injectors like 290 or 310cc instead of the stock "240?cc" injector's

i was thinking of throwing in some prelude injectors and seeing if that dosnt help or fix anything...if that dosnt do anything than all thats left is the pump itself...??

 

Yes, the fuel pump could be the problem. Sounds like you eliminated the FPR, so I would get my hands on a new pump if I were you.