008583 - Bank 1 System too Lean at Idle

[libra007]

I have been on the board but didnt posted much but browsed heavily. i had engine light turning on and then turned off after few cycles, was more persistent when AC was on, checked with OBD II it showed 0171 code. It has come back on and this time its not going back at all. asked a friend to scan vcds and it has come up with the following. on bit of research, it looks PCV but I am not sure, so any suggestions will be of great help. I have looked around vacuum pipes, didnt find any obvious leak.

Address 01: Engine Labels: 06F-907-115-AXX.lbl
Part No SW: 4F2 910 115 B HW: 4F2 907 115
Component: 2.0l R4/4V TFSI 0040
Revision: --H14--- Serial number:
Coding: 0105000302070120
Shop #: WSC 00359 210 91468
VCID: 1F4D05F7CE4807E68D9-804A

3 Faults Found:
008583 - Bank 1; System too Lean at Idle
P2187 - 004 - - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 82461 km
Time Indication: 0
Date: 2014.03.15
Time: 17:59:35

Freeze Frame:
RPM: 833 /min
Load: 24.7 %
Speed: 7.0 km/h
Temperature: 64.0°C
Temperature: 18.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 13.589 V

008825 - Leak in Air Intake System
P2279 - 002 -
Freeze Frame:
Fault Status: 01100010
Fault Priority: 0
Fault Frequency: 2
Reset counter: 255
Mileage: 82495 km
Time Indication: 0
Date: 2014.03.19
Time: 19:40:57

Freeze Frame:
RPM: 779 /min
Load: 14.1 %
Speed: 0.0 km/h
Temperature: 88.0°C
Temperature: 45.0°C
Absolute Pres.: 990.0 mbar
Voltage: 13.970 V

001287 - Idle Control System RPM
P0507 - 001 - Higher than Expected. - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 2
Reset counter: 255
Mileage: 82498 km
Time Indication: 0
Date: 2014.03.19
Time: 19:45:53

Freeze Frame:
RPM: 899 /min
Load: 14.9 %
Speed: 0.0 km/h
Temperature: 89.0°C
Temperature: 44.0°C
Absolute Pres.: 990.0 mbar
Voltage: 13.970 V

[MarkTM]

Why not simply google each of the faults?

First one:

18619/P2187/008583 - Ross-Tech Wiki

Simples!

[Guest 2]

Why not simply google each of the faults?

First one:

18619/P2187/008583 - Ross-Tech Wiki

Simples!

Not sure why people don't google the fault code first of all

[libra007]

Thanks guys, I have already done that and posted for suggestion where to start first, though i missed this last line in special notes (If the breather valve is faulty, full engine vacuum is typically found when removing the oil cap at idle.) check it indeed its the case with my a6. is 06F129101N the correct for this valve?


18619/P2187/008583 - Bank 1; System too Lean at Idle

Possible Causes

• Injectors leak/blocked
• Air Intake Leak (after MAF)
• Exhaust Leak

Possible Solutions

• Check Mass Air Flow Sensor (G70)
• Check Injector(s)
• Check Fuel Pump
• Check Activated Charcoal Filter (EVAP) System Solenoid Valve 1 (N80)

Special Notes

• When found in the NAR 2.0T (BPY) check RVUTB: 01-09-03 or 2018919 for updated Crankcase Breather Valve
  
  • If the breather valve is faulty, full engine vacuum is typically found when removing the oil cap at idle.
  
  

[MarkTM]

GENUINE VW & AUDI 2.0T FSI PETROL PCV PRESSURE CONTROL VALVE 06F129101R | eBay

Says it's for a 2009+ though.

To be sure your best speaking to n Audi dealer tomorrow.

[libra007]

spoken to local Audi dealer, they didnt have in stock, ordered for tomorrow along with the gasket as i think it make sense to change that too. both costing in total of 58 quids!

[libra007]

fitted yesterday evening, the old valve was C version, it wasnt completely broken but wasnt working properly and loosing air even at closed position.

Gasket

20140325_154120.jpg

PCV part num: 06F129101 N

20140325_154144.jpg

New and Old side by side before installation
20140325_154636.jpg

the old one has revision C
20140325_165323.jpg

engine cap removal while idling now have normal vacuum pressure which was crazy with old valve and required good effort to remove it. cleared faults codes, rescanned after test drive, was error free. The mother in law (MIL) hasnt come back yet after 1 day of driving and car is idling nice and smooth now.

Before clearing the codes, i removed the oil cap it didnt take force but after removal engine started shaking think its normal, correct me if I am wrong, I havent checked after clearing the codes though.

[libra007]

after few days of driving, its all fine fingers crossed! good that found the solution spot on, seen people going from plugs, coils, MAF sensors etc first without solving this p0171 bank 1 too lean problem!

A6 got its power and mileage is now much better.