yeah tigh I recently changed the relay module for the fuel pump, engine control unit, air pump.I forgot what part number that relay is. It was simple just plug and play. The engine seems to run smoother the only alternative I can think of with a engine that has 170,546 miles on it is the fuel pimp which hasn't been changed as far as I know since 2004. It is a Bosch fuel pump and I can go online and get a Autobest fuel pump for about $46 on amazon