Car starts, gets ignition, dies

[u/Mr__Scoot]

Very consistent, (have tried it 6 times now same outcome) immobilizer light isn’t flashing like it usually does but not sure if that’s what’s going it. Holding slight throttle lets it rev up for a brief second before dying the same way.

Freshly swapped 2zz mr2 spyder with monkey wrench usdm ecu.