Suzuki: 1991 Sidekick Fuel Problem, electrical conductors, battery cables

Question
Thank you for your previous suggestions to a question I asked earlier. Just wondering if I can go a little further!  My Sidekick, while warming up and not having any problems in the recent past, died.  Cranks but won't start except with starting fluid then dies.  Spark is good, fuel filter was replaced, fuel pump and pressure are fine.  We checked for trouble code and only got "12" (circuit okay) and the "check engine" light comes on steady with key.  Fuel injector is within specs but checking with NOID lamp in connector to fuel injector, bulb very dimly pulses.  Theres a plug by the DTC module thing (sorry) that looks like battery corrosion melted or ruined a small section.  I've seen in another question you answered on '93 Sidekick that a dirty/corroded battery terminal can create this problem due to poor grounding.  Is this the same plug that can cause this problem and how would we check/fix?

Answer
Clean and repair all the connections on all the battery cables. Or any electrical conductors, for that matter. It's easily possible that could be the cause.  The other possibility is that the transistor in the ECM that drives the injector is bad.  If so, go to izook dot com, there's link to a company that repairs them, and for considerably less than anyone else.
scotty