Yaris not starting after major engine repair

[SWL]

My daughter drove her 2007 Yaris hot (three times) and warped the head - Being an old shade tree mechanic I thought I would save her some money and do the job myself. I tore it down had the head resurfaced and reworked and put it all back together carefully, following the online yaris service manual step by step - Now I cannot get any fire to the ignition - It does NOT have the engine immobilzation system ( it was an option in 2007 in US) - I have checked the sensors (Crankcase, camshaft positioning sensors) and they fall within specs - I asked a local mechanic and he thought that my ECU needed reprogramming by the dealer - Is this possible? I can find no mention of it in the service manual online. What else could keep me from getting fire to the plugs? I checked the ECU fuses - all ok - checked the harness - all ok - the car was running (badly) when it tore it down - I'm at my wit's end. Any advice would be appreciated.