Error getting view results on non-default bucket

Customer setup non-default bucket, created view and published to production.

The view is:
function (doc) {
  //Check for dataCount, do not include it
  if(doc.value != null)
emit(doc.sensorId, [doc.value, doc.timestamp]);
}


When querying with this:
$this->_CouchbaseHandle = new Couchbase($this->_Config->couchbase->host.":8091", $this->_Config->couchbase->user, $this->_Config->couchbase->password, $this->_Config->couchbase->bucket);

$result = $this->_CouchbaseHandle->view("_design/Sensors", "getSensorById");
foreach($result["rows"] as $row) {
echo $row->key;
   }

The following error is returned:
Warning: Couchbase::view(): Failed to execute view: Protocol error in /var/domains/wesley.sensor-api.xanedo.com/library/Xanedo/Couchbase.php on line 87
Warning: Invalid argument supplied for foreach() in /var/domains/wesley.sensor-api.xanedo.com/library/Xanedo/Couchbase.php on line 88

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I was able to reproduce this in-house with similar setup. Using var_dump, the $result comes back as bool(false).

_all_docs works correctly, any production or development view does not seem to work according to these instructions: http://www.couchbase.com/develop/php/next