totally possible
86 FWD centurys and lesabres and other 86 makes (olds cutlass ceira)with the buick 3.8L fuel injected came with the same 1227148 ecm as the 86-87 turbo buick , t prom chip isnt the same calibration and the the little chip (calpak) is different but it really only used for default incase of a calprom error , if you arent on stock injectors the stock calpak wouldnt be correct anyway