P0491 and P0492 first and second bank secondary air injection code

Reply Subscribe

Thread Tools

Search this Thread

07-18-2011, 12:44 PM

Zuds41

AudiWorld Newcomer

Thread Starter

Join Date: Jul 2011

Posts: 2

Likes: 0

Received 0 Likes on 0 Posts

P0491 and P0492 first and second bank secondary air injection code

I have a 2003 Audi A6 Quatro 3.0L 130,000 that just threw these codes. Any hints on where to start looking as to why?

Reply Like

07-18-2011, 04:45 PM

Philhawtin

AudiWorld Member

Join Date: Oct 2010

Posts: 225

Likes: 0

Received 0 Likes on 0 Posts

Any recent damage or work done to the front end right side(passenger side)???

Reply Like

07-23-2011, 12:20 AM

tester123

AudiWorld Senior Member

Join Date: Oct 2009

Posts: 842

Likes: 0

Received 5 Likes on 5 Posts

Vacuum lines going to Combination valves or the valves themselves, secondary air pump and/or hoses, power to the pump are some of the things to start with.

Reply Like

Reply Subscribe

Related Topics

Thread

Thread Starter

Forum

Replies

Last Post

Seconary air pump

Ottoman56

Audi allroad

09-21-2016 04:03 AM

P1411 and P1423 after air pump replaced

Nichole77

A6 / S6 (C5 Platform) Discussion

04-04-2016 01:16 AM

bank 1-2 secondary air

Darivative

A6 / S6 (C5 Platform) Discussion

01-23-2009 08:09 PM

Audi4780

A4 (B5 Platform) Discussion

09-23-2008 12:55 PM

Secondary Air Injection Insufficient Flow Both Banks

ecgarzone

2.7T V6 Discussion

11-08-2006 11:06 AM