Chris;
I very much like your visible but completely enclosed, Injector check tubes. They allow a safe, fuel delivery AND spray pattern check...I had never seen that before, but think its absolutely brilliant in its simplicity, effectiveness, and ignition risk mitigation!
Of course, the first thing I would suggest Mike check for is to listen for Fuel Pump charging the Fuel Rail when turning ON the Ign Key...his no-start could be as simple as FuPu Fuse being open from a poor contact at the Fuseholder (a known common issue for owners which haven't treated all of their fuseends with ACZP)...I like to start by checking the simple things first...
Cheers
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