Boost leak CM870......check engine light?

[tlzimmerman]

Hopefully will get some time to work on it today. I am pretty sure the engine isn't de-mandated. At least it doesn't make sense that they just put a brand new EGR valve in just to disable it...but I suppose weirder things have happened. I'll make sure I get exhaust gasses at the back side of the EGR cooler today before I hook everything back up. Be a good time to check to make sure the EGR cooler isn't leaking while I have everything apart checking all the connections.