Just installed the TST box and scared the begeegus out of myself,after a careful install I turned the key on and the RPM gauge started maxing out like crazy(truck wasnt running) then truck wouldnt start because of the obvious RPM jump. Disconnected box and thankfully the truck started right up and no problems. Any ideas before I try this one more time?

 

I think you'll find that you've gotten the cam and crank sensor plug-ins reversed. Re-check those plugs and give it a go.

Rod