ARG!!!!!! Rotaries are so frusterating!!!!
 

so about last march i rebulit my 89 n/a fc it ran fine when i took it apart. in the rebuild process i street ported it and put a rx8 e shaft in it. i also removed all the emisions. when i put it back together almost everything was back to normal.......... now when the car comes under load at anything more than about 40% throttle makes it want to sputter and die. i just replaced everything form the LIM up including the injectors. i just wanted to know if anyone has had this problem and how i could fix it............. F.M.L.

Sounds kinda like limp mode to me... Are you getting any CEL's? Could be your Oil Meterng Pump going out. Could also just be a vacuum leak.

no offense intended but as you stated it ran fine prior to the rebuild...
you really cant blame the current issue on the motor.. its in the build

i was thinking it was aome kind of limp mode the OMP is a good place to look next thanks for the advice........... and i do blame mechanic error i still would like to find the prob..... thx for the insight :D

If you do indeed need another OMP, Ive got one for sale. let me know!

does sound like OMP limp mode, check for codes.

had a similar issue after a swap... turned out to be grounds...

thanks tex but i gots a few extra motors layin round..... ill also have to check the grounds........ wish i would have posted this a year ago lol

Check the fuel pump, my GXL did that last year before I sold it. Turned out to be the fuel pump.