System too rich DTCs. suggestions?

Christian (Stage Ow) · 08-26-2005, 11:34 AM

codes below. I was thinking I could pull some fuel back with lemmi. thoughts?

---------------------------------

DTCs: 7/31/05 12:59 pm - 4 Faults:

MS STAGE 6.0 0003

P/N: 8D0 907 551 HA

Coding: 06711, WSC: 05052

16815 P0431 035

Warm up Catalyst Bank 2: Efficiency Below Theshold

16805 P0421 163

Warm up Catalyst Bank 1: Efficiency Below Theshold [Sporadic]

17537 P1129 163

Bank 2 Mixture Adaptation (Mult): system too rich [Sporadic]

17535 P1127 163

Bank 1 Mixture Adaptation (Mult): system too rich [Sporadic]

reefer_bob · 08-26-2005, 11:36 AM

DAP@EPL · 08-26-2005, 11:39 AM

Christian (Stage Ow) · 08-26-2005, 11:39 AM

Christian (Stage Ow) · 08-26-2005, 11:41 AM

suppose that's still an option, though.

DAP@EPL · 08-26-2005, 11:44 AM

reefer_bob · 08-26-2005, 11:44 AM

Christian (Stage Ow) · 08-26-2005, 11:51 AM

I suppose either or both could be gone. I'll do some logging on Block 211 to see what comes up for the MAF. Thanks DAP.

jprice@CPS · 08-26-2005, 11:54 AM

Also, there's a few reasons you could run rich.. (besides the BOV :-p )

In addition to bad MAF or o2 sensors (logs should show that), you may also have a boost leak. Before adjusting fueling, try and find out what else could be the issue. (if you pull fuel back now, then later fix a boost leak, you'll run super lean, not good)

PSmalls::DoggieStyle · 08-26-2005, 12:02 PM

then post the info and list your mods. Based on that, we should be able to help you identify an 02/MAF issue.

08-26-2005, 11:34 AM	#1
Christian (Stage Ow) Member Account #: 67845 Join Date: Jan 2004 Posts: 3,102	System too rich DTCs. suggestions? codes below. I was thinking I could pull some fuel back with lemmi. thoughts? --------------------------------- DTCs: 7/31/05 12:59 pm - 4 Faults: MS STAGE 6.0 0003 P/N: 8D0 907 551 HA Coding: 06711, WSC: 05052 16815 P0431 035 Warm up Catalyst Bank 2: Efficiency Below Theshold 16805 P0421 163 Warm up Catalyst Bank 1: Efficiency Below Theshold [Sporadic] 17537 P1129 163 Bank 2 Mixture Adaptation (Mult): system too rich [Sporadic] 17535 P1127 163 Bank 1 Mixture Adaptation (Mult): system too rich [Sporadic] __________________ __________ "It's easier to practice medicine without a license in this country than it is to get info on tuning Motronic." -JasonS9

08-26-2005, 11:36 AM	#2
reefer_bob Member Account #: 45294 Join Date: Oct 2002 Posts: 14,337	Take out your BOV's? __________________ Reefer_Bob. AIM: reeferbob R.I.P. Matthew Ammon aka O.W. Kenobi

08-26-2005, 11:39 AM	#3
DAP@EPL Audiworld Sponsor Account #: 6924 Join Date: Jun 2000 Posts: 19,701	Bad MAF? __________________

08-26-2005, 11:39 AM	#4
Christian (Stage Ow) Member Account #: 67845 Join Date: Jan 2004 Posts: 3,102	:) no BOVs here. I couldn't handle the shame. __________________ __________ "It's easier to practice medicine without a license in this country than it is to get info on tuning Motronic." -JasonS9

08-26-2005, 11:41 AM	#5
Christian (Stage Ow) Member Account #: 67845 Join Date: Jan 2004 Posts: 3,102	hm. used to get MAF codes, but switched to a new one awhile back and they went away. suppose that's still an option, though. __________________ __________ "It's easier to practice medicine without a license in this country than it is to get info on tuning Motronic." -JasonS9

08-26-2005, 11:44 AM	#6
DAP@EPL Audiworld Sponsor Account #: 6924 Join Date: Jun 2000 Posts: 19,701	Could be bad O2 sensors __________________

08-26-2005, 11:44 AM	#7
reefer_bob Member Account #: 45294 Join Date: Oct 2002 Posts: 14,337	LOL! :) __________________ Reefer_Bob. AIM: reeferbob R.I.P. Matthew Ammon aka O.W. Kenobi

08-26-2005, 11:51 AM	#8
Christian (Stage Ow) Member Account #: 67845 Join Date: Jan 2004 Posts: 3,102	again, possible. 02s and MAF are about the same age. I suppose either or both could be gone. I'll do some logging on Block 211 to see what comes up for the MAF. Thanks DAP. __________________ __________ "It's easier to practice medicine without a license in this country than it is to get info on tuning Motronic." -JasonS9

08-26-2005, 11:54 AM	#9
jprice@CPS Member Account #: 8422 Join Date: Aug 2000 Posts: 13,146	Don't pull fuel back wihtout exhausting all other potential issues. Also, there's a few reasons you could run rich.. (besides the BOV :-p ) In addition to bad MAF or o2 sensors (logs should show that), you may also have a boost leak. Before adjusting fueling, try and find out what else could be the issue. (if you pull fuel back now, then later fix a boost leak, you'll run super lean, not good) __________________ Minnesota Audi Club 2001.5 Audi A4 1.8TQMS APR Stage 3+, APR Exhaust, Eibach Pro Street Coilovers, Neuspeed 19mm rear sway.

08-26-2005, 12:02 PM	#10
PSmalls::DoggieStyle Elder Member Account #: 69223 Join Date: Jan 2004 Posts: 30,285	I've never found 211 to be very helpful. Just log 003 and 031 seperately... then post the info and list your mods. Based on that, we should be able to help you identify an 02/MAF issue.

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