B16 in eg, ecu problem???

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Alright I have been working on this problem for way too long...
I have a custom programmed and chipped p28 ecu with a obd0 b16 in my eg hatch
The motor keeps fluctuating between 900 and 1200 rpms when I start it, then when I hit the gas it is bubbly and sometimes dies if not when I hit the gas then when I take my foot of the gas. The ecu keeps throwing code 14 for the IACV I have replaced the Iacv 3 times and redone the the wiring all along it once. Could there be something else throwing off the code??? Perhaps timing, my dizzy or my ecu is bad??? Any Ideas???