I just did a motor swap (96 4.3l from a blazer into my 83 Montero) and am having trouble with the Alternator draining the battery with the key off. the way I have it wired now is the positive battery cable has 2 leads to the Alternator (one to the back post, the other to the plug-"F/I" pin.) I then have a wire from the check engine light to pin "L". is this wiring correct, I have replaced the alternator to ensure the one did not have a short in it and I am still having this problem.
Thank you for any information.