I have a '87 GL-10 EA82T that has been having engine issues. I finally discovered that the front passenger cylinder isn't firing consistently due to corrosion of the electrical contacts inside the connector for the fuel injector. So my question is do later EA82 engines have MPFI as well? If so, are they the same as the injectors and wiring for my '87 MPFI with Turbo? The injectors are ok, it is the wiring harness on the engine I need to replace. Does any one have one?