CEL came on - Audi Forum - Audi Forums for the A4, S4, TT, A3, A6 and more!

07-24-2008, 12:09 PM

#1

stagger

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CEL came on

Hi people check engine light came on a while ago showing 16785 insuffient egr flow also p0401-92-00 any ideas what im looking at.Thanks in advance

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07-24-2008, 12:50 PM

#2

1move

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Re: CEL came on

Quote:

Originally Posted by stagger

Hi people check engine light came on a while ago showing 16785 insuffient egr flow also p0401-92-00 any ideas what im looking at.Thanks in advance

16785- P0401 = Exhaust Gas Recirculation Flow Insufficient Detected

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07-24-2008, 01:31 PM

#3

stagger

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Re: CEL came on

What can I do too fix it.Thanks

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07-25-2008, 06:23 PM

#4

stagger

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Re: CEL came on

Anybody with any suggestions.Thanks

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07-26-2008, 02:15 AM

#5

whoace

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Re: CEL came on

Your EGR valve is probably not functioning. Not an expensive fix. Or you can just keep driving. The valve is used to recirculate exhaust gas to lower internal temps. You'll probably kill the NoX bed in your cat but if they don't test emissions in NFLD, you should be fine.

Last edited by whoace; 07-26-2008 at 02:20 AM.