Shop says ECM bad, what do you think???

[Smokin Joes 2500]

Turns out it was bad injector lines. Apparently the copper washer that seals them (the lines that is) were bad. They replaced all 6 lines @ $20 a piece and WALLA' it runs. They told me this was the first 3rd gen they put injectors in (small shop) Then to top it all off they only charged me for 6 hours of labor! I cant complain after the event, it took a long time to get it back but they did a good job and it runs smoother an quieter. Im happy. They sold me some Stanadyne fuel treatment told me to run that and it should be good. So far no hiccups.