The solution was swapping the IM for a 1986 model year 190e. The TD signal for the 1987 engine comes from a sensor near the flywheel on the bell housing. The TD signal for the 1986 engine comes from the distributor. On the advice from a local service shop, I replaced IM's and left the inputs from various sensors disconnected. Although engine performance may suffer without additional sensor input, the engine runs well, and it does not bind while starting. Thanks for all the help from those who left feedback to my queries.