Intersecting 2 recordsets based only on one field common to both

Without going into detail about how I arrived at the 2 queries below, what I need to do is identify records that meet these 2 criteria:
1. TestTypeID2 must appear in both recordsets (that is to say, tests were run on both machines 101 and 102).
2. The sum of the total failures between BOTH machines must be 4 or greater.

So, in the sample screenshot attached, you can see in the returned recordsets that:
- Only TestTypeID2 = 32 qualifies
- TestTypeID2 = 33 only had 3 failures total
- TestTypeID2 = 35 only had failures on machine 102

I believe I need some sort of intersection, but only based on the TestTypeID2 field.

Here are the queries:

SELECT PH.MachineID
      ,PTD2.TestTypeID AS TestTypeID2
      ,COUNT(PTD2.TestData) AS TotalFails
  FROM [Comtech_HFV6].[dbo].[tbl_PartHistory] PH
  LEFT JOIN tbl_PartTestData PTD
  ON PH.PartHistoryKey = PTD.PartHistoryKey
  LEFT JOIN tbl_PartTestData PTD2
  ON (PTD.PartHistoryKey = PTD2.PartHistoryKey) AND (PTD.TestTypeID + 6 = PTD2.TestTypeID )
  WHERE PH.SerialNumber = 'A22222222'
      AND PH.MachineID = 101
      AND PTD.TestTypeID BETWEEN 26 and 31
      AND PH.PassedStatus < 0
      AND CAST(PTD2.TestData AS REAL) = 0
      AND CAST(PTD.TestData AS REAL) < 900
    GROUP BY PTD2.TestTypeID, PH.MachineID
 
 SELECT PH.MachineID
      ,PTD2.TestTypeID AS TestTypeID2
      ,COUNT(PTD2.TestData) AS TotalFails
  FROM [Comtech_HFV6].[dbo].[tbl_PartHistory] PH
  LEFT JOIN tbl_PartTestData PTD
  ON PH.PartHistoryKey = PTD.PartHistoryKey
  LEFT JOIN tbl_PartTestData PTD2
  ON (PTD.PartHistoryKey = PTD2.PartHistoryKey) AND (PTD.TestTypeID + 6 = PTD2.TestTypeID )
  WHERE PH.SerialNumber = 'A22222222'
      AND PH.MachineID = 102
      AND PTD.TestTypeID BETWEEN 26 and 31
      AND PH.PassedStatus < 0
      AND CAST(PTD2.TestData AS REAL) = 0
      AND CAST(PTD.TestData AS REAL) < 900
    GROUP BY PTD2.TestTypeID, PH.MachineID
Sample-Recordsets.jpg