P2440 Lexus -

Question

How to fix the problem with the P2440 code on a 2011 Lexus gx460

Answer 1

Hi there,

This code indicates an issue with the vacuum switching valve. Here is a list of possible causes.

P2440 LEXUS - Secondary Air Injection System Switching Valve Stuck Open Bank 1

Read more: https://www.autocodes.com/p2440_lexus.html

Answer 2

The P2440 is a Bank1 secondary air injection system air switching valve stuck open code. It is often caused by a failing air injection pump or the valve gets physically stuck open by corrosion or frozen water. Either way we have a bypass kit that can save you from a $2000-3000 dollar repair and would recommend one of our Gen-II bypass kits.

You can find them here:Hewitt Tech GenII Secondary Air Bypass Kits