p0411-Audi

Question

I have a 99 Audi A6 Quattro. The CEL light came on. The
p0411 code popped up. The secondary air injection
system incorrect flow. Can anyone give me advice as to
what i should check first and how to check it before i
start soending unnecessary money.

Answer 1

Hi there,

Here is a list of possible causes for this code. 

P0411 AUDI - Secondary Air Injection System Incorrect Flow Detected

Read more: https://www.autocodes.com/p0411_audi.html