-Hi Techs, Hope I will solve it with your help. Working on a '87 Plym. Voyager, CA emission, 2.2L, man. trans. 66827 mi. VIN:2P4FH21C5HR185182. -New O2 sen. -New MC sol. -New ECM. Not entering in close loop; -Replase the CTS, scope again: -feedback system not ... Login to read more.