Recurring DTC's

Diagnostic Trouble Codes (DTC) / VCDS (VAG-COM) forum
Post Reply
User avatar
S25MRS
3rd Gear
Posts: 320
Joined: Fri Jan 11, 2008 8:21 pm

Recurring DTC's

Post by S25MRS » Sun Mar 23, 2008 2:31 pm

Hi folks,
I've got an issue with a couple of recurring DTC's (2001 RS4) that I wondered if anyone could give any extra help with.

The first is to do with thermostat which is going to be changed with cambelt service soon, so no probs there.
The other 2 though... 17831 & 17819. Secondary Air Injection System Banks 1 & 2 (code for each).

My sec air pump seems to work fine on startup, and I cant find any leaks with the hoses, but the thing that confuses me is that this is not a cold start fault... the engine management light comes on after about 20 mins/half hour driving - not every time I get in car after clearing the DTC, but after about a week - 10 days.

A little confused here, so any help or ideas from anyone would be appreciated.

Thanks chaps/chapesses :)
Mark
Current:
B6 S4 Avant
CBR1000RR-8
Gone:
2001 RS4
MV Agusta F4
Top
User avatar
S25MRS
3rd Gear
Posts: 320
Joined: Fri Jan 11, 2008 8:21 pm

Post by S25MRS » Sun Mar 23, 2008 4:50 pm

Also, just for information, the MAF is apparantly ok
Mark
Current:
B6 S4 Avant
CBR1000RR-8
Gone:
2001 RS4
MV Agusta F4
Top
Sebastian
2nd Gear
Posts: 100
Joined: Fri Dec 15, 2006 10:39 pm
Location: Magdeburg, Germany
Contact:
Contact Sebastian

Post by Sebastian » Sun Mar 23, 2008 7:47 pm

Been here?

http://wiki.ross-tech.com/index.php/17831/P1423/005155
http://wiki.ross-tech.com/index.php/17819/P1411/005137
Sebastian @ Ross-Tech.com
Top
User avatar
S25MRS
3rd Gear
Posts: 320
Joined: Fri Jan 11, 2008 8:21 pm

Post by S25MRS » Sun Mar 23, 2008 8:11 pm

Yes, thanks Sebastian - thats where I got the information from to do my initial checks (as above). Now wondering if it could be the MAF...... had a healthcheck a couple of months ago, and all was ok, then Doug had a quick look at VAG COM again on a flying visit a good few weeks ago, but we seemed to think it could be the sec air pump.

You know when you get a feeling about something..... (MAF)
Mark
Current:
B6 S4 Avant
CBR1000RR-8
Gone:
2001 RS4
MV Agusta F4
Top
User avatar
mikeyquattro
Top Gear
Posts: 2191
Joined: Wed Mar 16, 2005 11:04 pm
Location: Witshire

Post by mikeyquattro » Sun Mar 23, 2008 8:58 pm

I reckon you got some leaky ho's :lol:

Could do a log to make sure the maf's ok?
Tomorrow is another day
Top
jimbo1234567
5th Gear
Posts: 1411
Joined: Sun Jun 24, 2007 12:02 pm
Location: in the kitchen

Post by jimbo1234567 » Sun Mar 23, 2008 9:39 pm

i got a similar code when my precats were taken out that would come back about a week after being reset. the secondary air system can be taken out without causing any other probs if its knackered. :nogarors4:
Top
User avatar
S25MRS
3rd Gear
Posts: 320
Joined: Fri Jan 11, 2008 8:21 pm

Post by S25MRS » Mon Mar 24, 2008 12:32 am

Thanks Jimbo, what's confused me is that the engine management light comes on after driving for some time - I thought the sec air pump only ran for a few mins after start up?

Mike, yes, I could do - if I knew what to do... lol If you've got the time to explain to me how, I'll give it a go ....
Mark
Current:
B6 S4 Avant
CBR1000RR-8
Gone:
2001 RS4
MV Agusta F4
Top
User avatar
mikeyquattro
Top Gear
Posts: 2191
Joined: Wed Mar 16, 2005 11:04 pm
Location: Witshire

Post by mikeyquattro » Tue Mar 25, 2008 10:56 pm

S25MRS wrote: Mike, yes, I could do - if I knew what to do... lol If you've got the time to explain to me how, I'll give it a go ....
No worries bud. When we can arrange a time that suits, and i'm not ripping my hair out with my new PC, then we'll do some logs.....
Tomorrow is another day
Top
User avatar
S25MRS
3rd Gear
Posts: 320
Joined: Fri Jan 11, 2008 8:21 pm

Post by S25MRS » Wed Mar 26, 2008 12:15 am

Cool mate, look forward to it :)
Mark
Current:
B6 S4 Avant
CBR1000RR-8
Gone:
2001 RS4
MV Agusta F4
Top
Post Reply

Return to “DTC / VCDS”

Who is online

Users browsing this forum: No registered users and 33 guests