After finding a loose hose (front side of intake) and broken check valve / orifice on the plastic lines / hoses leading to throttle body, I reconnected the intake hose and taped up the broken check valve / orifice with friction tape. This corrected the high idle condition and Code 25 error I was getting.
This morning when I tried to remove the friction tape to PVC glue the valve back together, the "T" connecting the intake hose and both ends of the harness / hose assembly leading back to the throttle body broke
I can't see any way to remove the broken "T" fitting that connected the harness / hose assembly together and the intake hose. The ends of the "T" connecting the bundle to the throttle body and the other side seem "fused" inside a the hard plastic hose. I was thinking about finding a similar fitting at an auto parts store but not sure how to proceed since I can't figure out how to remove the broken ends. Don't want to tug too hard and break additional lines.
Any thoughts? I can't find the PNs or diagram in my '86 shop manual but here's a pic of the damage: