Wideband

Right, but they should be able to run, IE if the temp sender fails, etc.

What I'm saying is I don't understand why anyone would design a system that requires such procedure. It could be argued that this is a safety issue.

When my engine is warm, either on the "old Ranger" or the 95 Olds, or the Holley on the Dart, I never wait for the pump to "build." The Dart sometimes starts in less than 1/2 - 1 second, roughly. But even cold, medium or warm, I never wait for the O2 to warm up.