Yeah so as the title states my client has a 2006 Mustang GT that him and his buddy just installed a cam into. The vehicle is running fine before they started the install but of course now we get a crank no start It stumbles for a second here and there but for the most part I just will not stay idling at all. It doesn't even come to an idle. My concern is that what we're going to check is compression too but I'm unable to read his ECU with either my MPVI2 nor a device that was sent to him via bama. Both devices as soon as you go to try and read from the ECU not right but just read from the ECU it falls on its face. HP tuners gives their that it's not supported which it very obviously is. As far as I know there's no jumpers or anything weird that you have to do I know that you got to throw FEPS voltage or rather throw 18 volts at pin 13 on a bunch of mustangs in order to get it to right but I've never had that problem getting it to read.
I've checked the fuses for the ECU and all that stuff's fine. I can scan it just fine and then I can date a log with no issues I can check for codes I can clear codes I can do everything with the VCM scanner the one would expect but I'm unable to actually read and it's failing before anything. It's like right as soon as it tries to get security access it falls on its face. But it doesn't give me like an unauthorized error It just says not supported or vehicle protocol not supported or something like that.
And you guys ever run into this problem on these vehicles? If so where would be some problematic places to check? Is he maybe missing a ground or something simple like that or is it something more sinister?