RS4 B7 - Bank 2 fault codes

Diagnostic Trouble Codes (DTC) / VCDS (VAG-COM) forum
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Tom600
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RS4 B7 - Bank 2 fault codes

Post by Tom600 » Sun Aug 23, 2015 8:15 pm

Hi,

I'm looking for a bit of advice regarding a couple of faults codes detected by Vagcom after the warning light came on recently.

The two codes are:

- P0174 - 004 - System too lean - Fuel trim Bank 2
- P1411 - 002 - Insufficient flow - Secondary air injection system bank 2

The warning light came on after motorway cruising for about 100 miles without and change in performance,n

I've read a few forums that mention split vacuum hoses, MAF sensors etc but I'm just looking to see if anyone has any words of wisdom before I bite the bullet and give it to Audi to sort.

Cheers :beerchug:

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