Esa

Hi I have a Legacy B4 which has a problem with the MAP and I recently ordered a new one but unfortunately the sent me a wrong one but they said a 5pin airflow sensor can work if connected to the 4pin adapter, can someone help me with how this can work? When i connected the 5pin air flow it sure worked but the vehicle couldn't manage to stay at idle, its cutting even at traffic lights???? Attached are photos of they are different. Help me..