Help!

i have an 89 nissan d21, with the z24i. love my truck. but its got a problem i cant figure out. the computer is throwing a code 11, and it falls flat on its face with anything more than 1/3 throttle. idles great, still runs great-long as i stay outta the pedal. living in the mountains, thats impossible. i took it to a dealer, after running the trouble codes, and then testing the crank angle sensor-it was right within spec. nissan told me it needed a new distributor and both coils. they wanted 1300. told em to kick rocks. i installed a new crank angle sensor, as well as both coils new, as well as plugs wires cap and rotor. the problem still remains, and the computer still flashes a code 11. any suggestions before i remove the computer and send it in to be rebuilt?