Getting P2270 code on 2004 Hyundai Elantra, already replaced sensor and cat what else could it be?

Question

Getting P2270 code on2004 Hyundai Elantra 2.0L already replaced sensor and cat what else could it be?

Answer 1

You could have a large vaccum leak or low fuel pressure.

More information: https://www.autocodes.com/p2270_hyundai.html