On A320 suppose you have engine stall after take off.After 400feet you put the thrust lever to idle on the affected engine.After this should we put the lever to MCT on good enginellevel off at 1500 feet /clean up/MCT or Mantain the flex detent or TOGA used for take off and follow the Engine out Procedure.What is the difference between MCT and T/o thrust (in flex or Toga) after 400feet?
With one engine failed and the other in flex you still have sufficient thrust to climb away safely. Thrust lever position doesn't need to change until flaps zero, and you'll be guided to this by your FMA flashing "LEVER MCT".
Following the ECAM will potentially leave you with the engine running at reduced power instead of shut down anyway, making the situation easier to handle.