Diagnostic help please - Are any of these codes related? - Club Touareg Forums
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post #1 of 18 Old 06-24-2017 Thread Starter
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Diagnostic help please - Are any of these codes related?

Evening all

I was just wondering if anyone can shed any light on the codes stated below or has seen these before and any fixes? Any help would be greatly appreicated. At first glance it looks like an o2 sensor has gone bad (not sure which one and location) and needs replacing and the EGR valve needs to be cleaned. There doesn't seem to be a ross Tech Wiki for these codes for some reason otherwise i could probably get it sorted

It's a 3.0 V6 Tdi by the way. Massive thanks in advance

Quote:
Friday,23,June,2017,10:10:31:58836
VCDS Version: Release 14.10.0

Address 01: Engine Labels: Redir Fail!
Control Module Part Number: 7L0 907 401 HW: 8E0 907 401 AB
Component and/or Version: 3.0L V6TDI G000AG 0110
Software Coding: 0011775
Work Shop Code: WSC 00015 210 89745
VCID: 68D5D35558960F61C7B-5178
3 Faults Found:

008598 - Oxygen (Lambda) Sensor B1 S1
P2196 - 002 - Signal too High (Rich)
Freeze Frame:
Fault Status: 01110010
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 172907 km
Time Indication: 0

Freeze Frame:
RPM: 1638 /min
Torque: 0.0 Nm
Speed: 82.9 km/h
Duty Cycle: 1.0 %
Duty Cycle: 41.8 %
(no units): 0.0
(no units): 80.0

009236 - Oxygen (Lambda) Sensor B1 S1 Voltage too Low / Air Leakage / Sample Error
P2414 - 002 -
Freeze Frame:
Fault Status: 01110010
Fault Priority: 0
Fault Frequency: 4
Reset counter: 255
Mileage: 172923 km
Time Indication: 0

Freeze Frame:
RPM: 756 /min
Torque: 97.5 Nm
Speed: 0.0 km/h
Duty Cycle: 1.0 %
Duty Cycle: 36.9 %
(no units): 0.0
(no units): 64.0

001025 - EGR System
P0401 - 002 - Insufficient Flow
Freeze Frame:
Fault Status: 01110010
Fault Priority: 0
Fault Frequency: 5
Reset counter: 255
Mileage: 172951 km
Time Indication: 0

Freeze Frame:
RPM: 1722 /min
Torque: 117.0 Nm
Speed: 86.2 km/h
Duty Cycle: 49.8 %
Duty Cycle: 20.9 %
Mass Air / Rev.: 499.4 mg/str
Duty Cycle: 39.8 %


Readiness: 0 0 0 0 0
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post #2 of 18 Old 06-24-2017
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Quote:
Originally Posted by Jimmyjames View Post
Evening all

I was just wondering if anyone can shed any light on the codes stated below or has seen these before and any fixes? Any help would be greatly appreicated. At first glance it looks like an o2 sensor has gone bad (not sure which one and location) and needs replacing and the EGR valve needs to be cleaned. There doesn't seem to be a ross Tech Wiki for these codes for some reason otherwise i could probably get it sorted

It's a 3.0 V6 Tdi by the way. Massive thanks in advance



Have you blocked off your EGR pipe ??


Regards
Drag
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post #3 of 18 Old 06-25-2017 Thread Starter
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Quote:
Originally Posted by dragline1570 View Post
Have you blocked off your EGR pipe ??


Regards
Drag
No , it's all factory as far as i'm aware although i haven't had time to take it apart to inspect yet.
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post #4 of 18 Old 06-28-2017 Thread Starter
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Anyone got any other ideas please? Would the over filled oil have caused any of the codes by fouling sensors? I literally draind nearly 1.5 litres from the sump to get the level correct and there was no smell of diesel in the oil and the car generally runs well.
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post #5 of 18 Old 06-28-2017
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How did the overfill occur in the first place?

If you don't know then, regardless of the fact the oil doesn't smell of derv, I would still change the oil and oil filter and then monitor the fresh oil level very carefully. If the level is rising it can only be derv or coolant (or both!) getting into it.
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post #6 of 18 Old 06-28-2017 Thread Starter
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Thanks for the reply. It's not water because coolant level is stable and there is no emulsification in the oil or steam from exhaust, had water loss issue on Passat with cracked head so pretty certain it's not that. Car was service by a back street garage which is the likely cause of the overfill but I will be monitoring it in the next few days to see if the level increases. I will get a lambada probe on order and some maf cleaner and generally check things over this weekend and see if that changes things. I'm convinced the over filled oil caused contamination of the sensors, time will tell I guess.
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post #7 of 18 Old 06-29-2017 Thread Starter
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Done approximately 200 miles since bringing the oil level down and the level has not moved since. Removed the o2 sensor today for a clean and again , not too many carbon deposits on it which was a little unexpected. Next on the list is to remove the egr for a clean and clean out the MAF which is likely to have fallen victim to the overfill on the oil. Once i have ruled out these items, i will clear the codes and see how it runs and if codes reappear.
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post #8 of 18 Old 06-29-2017
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I like the idea of a Touareg with a lambada probe.....

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post #9 of 18 Old 06-29-2017 Thread Starter
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Ha ha i meant Lambda!
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post #10 of 18 Old 07-03-2017 Thread Starter
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Another thing discovered today when cleaning the MAF, the idiot at the last garage not only overfilled the oil, it looks like he had a go at cleaning the MAF and didn't install it correctly causing unmetered air to enter the system or metered air to escape. Whoever it was put the O ring on the MAF and screwed it in place instead of installing the O ring inside the tabs of the airbox housing and then inserting it into the housing. Thankfully its been cleaned with MAF spray (was pretty dirty on the metal mesh screen) and inserted correctly now so i will see if that makes any difference.

This is exactly the reason i do my own servicing, at least i know its done correctly!

Oil level hasn't changed since draining the oil which is positive at least! New o2 sensor ordered and will be fitted tomorrow.
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