Hwildy

Hi all,I recently had an EML light on and upon checking codes I got:-P0171 - Fuel trim bank 1 too lean - open circuit -P2016 -intake manifold position sensor bank 1 short to ground communication P2015 - intake manifold flap position sensor bank 1implausible groundP2015 - intake manifold flap position sensor bank 1implausible signalP2015- intake manifold flap position sensor Short to plus Having had this, I replaced the complete manifold, reset the EML but it's pinged back up again after 20 miles.Any idea what it could be?