My van was dead one day I hooked it up to a code reader and was instructed to replace and reprogram PCM. So after 16 days of the van sitting i finally got the PCM installed. I noticed the engine sounding off and the van running weak. Hooked it up to a code reader and now I'm seeing p0202 p0204 p0205 injector circuit open for injector 2 4 and 5. Ah? Had no issue like this prior to replacing the PCM and now 3 injectors at the same time throw this code. I heard carvans sometime get wire harness melted or get shorts but again this wasn't showing up until the pcm replacement. I'm new to mechanical repair so any advice would be very helpful I'm in over my head.