code PO491 /495 bank 1 & 2 - Audi Forum - Audi Forums for the A4, S4, TT, A3, A6 and more!

08-01-2013, 03:35 PM

#1

bship3636

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code PO491 /495 bank 1 & 2

can anypne help me with these codes?

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08-01-2013, 03:35 PM

#2

bship3636

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Re: code PO491 /495 bank 1 & 2

help with codes

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08-01-2013, 03:36 PM

#3

bship3636

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Re: code PO491 /495 bank 1 & 2

help with codes PO 491 & 492 bank 1 & 2

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08-02-2013, 10:07 AM

#4

Daonhathai

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Re: code PO491 /495 bank 1 & 2

Your secondary air injection/pump is probably faulty or a crack/leaking vac line.

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08-02-2013, 10:13 AM

#5

bship3636

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Re: code PO491 /495 bank 1 & 2

Thank you for the reply back...its funny cause i just replaced both of those air pumps.

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08-02-2013, 10:14 AM

#6

Daonhathai

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Re: code PO491 /495 bank 1 & 2

You sure you did it properly didn't get any lines backwards or mixed up? Maybe it;s just a matter of clearing the codes if youve replaced it and the car is running normal

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