got the 94 vt running,my idle usto be 1200 and now its 1800,both left/rightside eng light on code 1,replaced both o2 sensors with oem sensors,cleaned connectors,disconnected battery,also cleared with tool that snaps into pcm.its a hard code because it comes on right away for both sides.also checked voltage at o2s and cks high,seems like pcm is telling need more gas at keeping idle higher.vehicle runs strong no drivabilty concerns noticable.
thanks