Originally Posted by
sonicbum
If You end up going around like this you will 99% set both thrust levers to TOGA. Use your engine below stall threshold and then find a familiar configuration for final app. The engine is still there if you need it anyway.
The procedure doesn't ask you idle the affected engine but keep it below stall threshold. And OP says the condition is it's having significant thrust but not GA thrust. So during approach to keep maintain speed you will have to play with it within the available thrust. You may leave it at idle but that's not recommended procedure.