P1423 - i have a 2001 audi a4 quattro. and this code keeps coming up when the car is put on a computer. p1423....HELP

Question

i have a 2001 audi a4 quattro. and this code keeps coming up when the car is put on a computer. p1423....HELP

Answer 1

Hi there,

This code indicates an issue with the secondary air injection system. Here is some info for you.

P1423 AUDI - Bank 1 Secondary Air Injection System Output Too Small

Read more: https://www.autocodes.com/p1423_audi.html