truck died, stuck on road

[Rawze]

One way to see if it is the EGR valve stuck wide open or if it is the turbocharger blocking the exhaust,.. is to simply remove the Venturi pipe completely from the truck and crank it up. See if it is still choked off when you rev it up. -- if it is still choking itself off,.. then it is the turbo stuck at 100%. --

If it runs really good again, and you suspect it is the EGR Valve, you should also feel hot air blasting out of the egr piping with it disassembled. To see if the EGr valve is closing properly, unplug the "magic plug" and wait for about 10 seconds to see that the EGR valve closes. The hot air should stop blasting out of the pipe when it closes.