Hyundai Nu engine

The Hyundai Nu engine was introduced in the 2011 Hyundai Elantra to replace the earlier Beta engines, and was designed to fill the gap between the new Gamma 1.6 litre and the 2.0 litre Theta II. It is offered as a 1.8 litre (G4NB) and several 2.0 litre versions: the MPi G4NA, the CVVL G4ND, the Atkinson cycle G4NH and the direct injection Nu GDi G4NC, plus a flex-fuel F4NA, two hybrid versions (G4NE and G4NG) and an LPG version, the L4NA. The 1.8 litre uses multi-point injection, dual continuous variable valve timing and a chain-driven roller DOHC 16-valve head with an aluminium block and head. The engine was used in the Elantra, i30, i40, Creta, Tucson and Sonata and in the Kia Forte, Soul, Sportage, Optima and Carens. In December 2020 Hyundai and Kia recalled 423,000 vehicles with various engines, including Nu GDi engines.