diff --git a/mpitests/test_adjoint_jacobian.py b/mpitests/test_adjoint_jacobian.py
index 862ad4c4ef..570f1106b8 100644
--- a/mpitests/test_adjoint_jacobian.py
+++ b/mpitests/test_adjoint_jacobian.py
@@ -39,9 +39,6 @@
 if not ld._CPP_BINARY_AVAILABLE:
     pytest.skip("No binary module found. Skipping.", allow_module_level=True)
 
-if device_name == "lightning.gpu":
-    pytest.skip("LGPU new API in WIP.  Skipping.", allow_module_level=True)
-
 I, X, Y, Z = (
     np.eye(2),
     qml.PauliX.compute_matrix(),
diff --git a/mpitests/test_apply.py b/mpitests/test_apply.py
index 0b0abf51a0..f1f2e30158 100644
--- a/mpitests/test_apply.py
+++ b/mpitests/test_apply.py
@@ -384,7 +384,7 @@ def circuit():
 class TestSparseHamExpval:  # pylint: disable=too-few-public-methods,missing-function-docstring
     """Tests sparse hamiltonian expectation values."""
 
-    @pytest.mark.parametrize("C_DTYPE", [np.complex128])
+    @pytest.mark.parametrize("C_DTYPE", [np.complex128, np.complex64])
     def test_sparse_hamiltonian_expectation(self, C_DTYPE):
         comm = MPI.COMM_WORLD
         commSize = comm.Get_size()
@@ -429,13 +429,11 @@ def circuit():
         mpi_qnode = qml.QNode(circuit, dev_mpi)
         expected_output_mpi = mpi_qnode()
 
+        comm.Barrier()
+        
         assert np.allclose(expected_output_mpi, expected_output_gpu)
 
 
-@pytest.mark.skipif(
-    device_name == "lightning.gpu",
-    reason="LGPU new API in WIP.  Skipping.",
-)
 class TestExpval:
     """Tests that expectation values are properly calculated or that the proper errors are raised."""
 
diff --git a/mpitests/test_probs.py b/mpitests/test_probs.py
index 0649d1c8c7..8edc52700c 100644
--- a/mpitests/test_probs.py
+++ b/mpitests/test_probs.py
@@ -20,9 +20,6 @@
 # pylint: disable=missing-function-docstring,unnecessary-comprehension,too-many-arguments,wrong-import-order,unused-variable,c-extension-no-member
 from mpi4py import MPI
 
-if device_name == "lightning.gpu":
-    pytest.skip("LGPU new API in WIP.  Skipping.", allow_module_level=True)
-
 numQubits = 8
 
 
diff --git a/pennylane_lightning/lightning_gpu/_measurements.py b/pennylane_lightning/lightning_gpu/_measurements.py
index 90f4ceb287..74c7f0e3a5 100644
--- a/pennylane_lightning/lightning_gpu/_measurements.py
+++ b/pennylane_lightning/lightning_gpu/_measurements.py
@@ -157,14 +157,6 @@ def expval(self, measurementprocess: MeasurementProcess):
 
         if isinstance(measurementprocess.obs, qml.SparseHamiltonian):
             # ensuring CSR sparse representation.
-            # CSR_SparseHamiltonian = measurementprocess.obs.sparse_matrix(
-            #     wire_order=list(range(self._qubit_state.num_wires))
-            # ).tocsr(copy=False)
-            # return self._measurement_lightning.expval(
-            #     CSR_SparseHamiltonian.indptr,
-            #     CSR_SparseHamiltonian.indices,
-            #     CSR_SparseHamiltonian.data,
-            # )
 
             if self._use_mpi:
                 # Identity for CSR_SparseHamiltonian to pass to processes with rank != 0 to reduce
@@ -195,16 +187,6 @@ def expval(self, measurementprocess: MeasurementProcess):
             matrix = measurementprocess.obs.matrix()
             return self._measurement_lightning.expval(matrix, observable_wires)
 
-        # if (
-        #     isinstance(measurementprocess.obs, (qml.ops.Hamiltonian, qml.Hermitian))
-        #     or (measurementprocess.obs.arithmetic_depth > 0)
-        #     or isinstance(measurementprocess.obs.name, List)
-        # ):
-        #     ob_serialized = QuantumScriptSerializer(
-        #         self._qubit_state.device_name, self.dtype == np.complex64
-        #     )._ob(measurementprocess.obs)
-        #     return self._measurement_lightning.expval(ob_serialized)
-
         if (
             isinstance(measurementprocess.obs, qml.ops.Hamiltonian)
             or (measurementprocess.obs.arithmetic_depth > 0)