2019-2022 Hyundai Veloster N High Pressure Fuel Pump How-To

The high pressure fuel pump issues of the Veloster N are well documented, and can at times lead to engine failure – not fun. While this car still has its warranty, engine failure is not a fun process to go through. The Sonata 2.0T fuel pump is an OEM pump that is often used in N cars, and I opted for this route as well. There aren’t any performance gains from this mod, just added reliability in the form of more headroom for fueling. I think this is the fuel pump they use when they do the recall service if they deem the fuel pump needs to be replaced. It’s spring operated so it’s just mechanically controlled. Knocked this out of the way while I was doing the spark plugs and steering wheel just as a reliability mod. It’s actually not a bad process at all, probably takes 30 minutes all-in.

Items/Tools Required:

10mm socket
19mm wrench
Pliers
Flathead
Towel

Remove the yellow 20a fuse just to the right of the one in place. Consult the back of your fuse box lid, but it should be the fuel pump fuse. Run the car twice until the engine won’t turn over anymore. Fuel should be drained after that. Disconnect the battery.
Remove the engine cover to expose the top of the head. Remove the intake tube off of the intake, using pliers to release the clip and pull it back. Remove the foam cover off of the fuel pump.
The fuel pump has 3 connections – the left is an electrical and 2 fuel hoses. Remove the electrical clip on the left and place a towel under the 2 hoses on the right.
Lift up the black cover and you’ll see a plastic locking clip on the end – if you stick a flathead in here and twist counterclockwise, you’ll be able to remove the clip.
Use a flathead to wedge between the grey portion and the fuel pump. Pull back to release the hose from the pump.
Use a 19mm wrench to release the hose on the right. After that, it’s just 2 10mm screws that hold the fuel pump on – undo those bolts and gently work the fuel pump out.
Fuel Pump comparison – new on the left. Replace the clip/gasket on the bottom of the old one to the new one – in my case, I bought a new gasket anyway so both fuel pumps are shown with the gasket.
Reverse the steps for the new fuel pump. Push the fuel pump into place, lining up the 10mm holes. Work them down back and forth, a little on each side at a time until it is snug. Position and replace both hard lines, 19mm for the one on the right and just a push to lock into place the one on the left. After that, it’s just the electrical clip, foam cover, intake hose, fuse, and battery – done! Let the car start up and run and watch it, but if all went well you shouldn’t even notice a difference.