throttle body problem

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EGR95

New Member
i bought a GSR tb ( its installed in a b16a) and the inside of the tb there two holes. the top hole goes to the IACV (IACV is from a GSR) and the bottom one goes to the FITV (FITV is from a GSR). the problem is that the top hole is sucking to much air, and its causing my engine to idle rough, when i notice the problem i put my finger on the top hole it started to idle smoothly,but when i take off my finger it has the rough idle. i already clean the IACV and FITV so what could it be, and i check to see if the computer was giving me a code and i obtain code 14 so i dont know what it is.
 
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