diff --git a/mmv1/products/vpcaccess/api.yaml b/mmv1/products/vpcaccess/api.yaml
index 49ca0fe63ac3..24e71e5faa1c 100644
--- a/mmv1/products/vpcaccess/api.yaml
+++ b/mmv1/products/vpcaccess/api.yaml
@@ -119,9 +119,10 @@ objects:
         name: maxThroughput
         # The API documentation says this will default to 200, but when I tried that I got an error that the minimum
         # throughput must be lower than the maximum. The console defaults to 1000, so I changed it to that.
+        # API returns 300 if it is not sent
         description: |
-          Maximum throughput of the connector in Mbps, must be greater than `min_throughput`. Default is 1000.
-        default_value: 1000
+          Maximum throughput of the connector in Mbps, must be greater than `min_throughput`. Default is 300.
+        default_value: 300
       - !ruby/object:Api::Type::String
         name: 'selfLink'
         description: |
diff --git a/mmv1/third_party/terraform/tests/resource_vpc_access_connector_test.go.erb b/mmv1/third_party/terraform/tests/resource_vpc_access_connector_test.go.erb
new file mode 100644
index 000000000000..d0dc5918167d
--- /dev/null
+++ b/mmv1/third_party/terraform/tests/resource_vpc_access_connector_test.go.erb
@@ -0,0 +1,65 @@
+<% autogen_exception -%>
+package google
+<% unless version == 'ga' -%>
+
+import (
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
+)
+
+func TestAccVPCAccessConnector_vpcAccessConnectorThroughput(t *testing.T) {
+	t.Parallel()
+
+	context := map[string]interface{}{
+		"random_suffix": randString(t, 10),
+	}
+
+	vcrTest(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProvidersOiCS,
+		CheckDestroy: testAccCheckVPCAccessConnectorDestroyProducer(t),
+		Steps: []resource.TestStep{
+			{
+				Config: testAccVPCAccessConnector_vpcAccessConnectorThroughput(context),
+			},
+			{
+				ResourceName:            "google_vpc_access_connector.connector",
+				ImportState:             true,
+				ImportStateVerify:       true,
+			},
+		},
+	})
+}
+
+func testAccVPCAccessConnector_vpcAccessConnectorThroughput(context map[string]interface{}) string {
+	return Nprintf(`
+resource "google_vpc_access_connector" "connector" {
+  provider      = google-beta
+  name          = "tf-test-vpc-con%{random_suffix}"
+  subnet {
+    name = google_compute_subnetwork.custom_test.name
+  }
+  machine_type = "e2-standard-4"
+  min_instances = 2
+  max_instances = 3
+  region        = "us-central1"
+}
+
+resource "google_compute_subnetwork" "custom_test" {
+  provider      = google-beta
+  name          = "tf-test-vpc-con%{random_suffix}"
+  ip_cidr_range = "10.2.0.0/28"
+  region        = "us-central1"
+  network       = google_compute_network.custom_test.id
+}
+
+resource "google_compute_network" "custom_test" {
+  provider                = google-beta
+  name                    = "tf-test-vpc-con%{random_suffix}"
+  auto_create_subnetworks = false
+}
+`, context)
+}
+
+<% end -%>