Hondata

Hello I recently purchased hondata for my 95 del sol, and installed it. I downloaded the proper p28 ECU parameters and uploaded them, after it entered closed loop the air/fuel reading never goes above 12.0:1. I pulled up the short term and long term fuel terms in a bigger window, the short term trim is sitting at about +30 in closed loop and long term stays at about +19 consistently. What I did was spray some brake clean around the intake area and the vacuum lines and couldn't get any response, I did test to make sure that the O2 was responding by spraying the air filter and as a result the fuel trim did drop in the short term. I'm wondering if anyone else has ever encountered this kind of issue before, and if they did what was the remedy.

As always any response helps and thank you for the responses in advance!