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Discussion Starter #1
I'm working on a '11 Jetta. Had multiple codes related to the DPF. Car goes into limp mode pretty quickly. Took the dpf and CAT off and had them professionally cleaned. Codes are still persistent. Is it possible that one of the many sensors of the DPF has failed? Any other hints as to what the problem might be?

Codes :
P2ba6 How can I isolate in more detail which glow plug is bad?
P2463 DPF cleaned
P0073 (tempt sensor and wiring missing - waiting on new plug)
P0401
P2002
 

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P2ba6 How can I isolate in more detail which glow plug is bad?
P2463 DPF cleaned
P0073 (tempt sensor and wiring missing - waiting on new plug)
P0401
P2002
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VAG Error Code: 011174

EOBD II Error Code: P2BA6

Fault Location:
Unknown Error Code

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.

Wiring/Connector(s).

Possible Solutions:
Check/Replace all faulty Wiring/Connector(s).
Read Measuring Value Blocks (MVB).


VAG Error Code: 18895/23902/16856/5188/7388/009315

EOBD II Error Code: P2463

Fault Location:
Diesel Particulate Filter (DPF) - Excessive Soot Accumulation

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.

Diesel Particulate Filter "full".

Possible Solutions:
Check Diesel Particulate Filter.
Perform Emergency Regeneration.

Read Measuring Value Blocks (MVB) check soot levels.
Special Notes:
Check the repair manual for any Technical Product Information (TPI)/Technical Service Bulletins (TSBs) related to dealer level engine control module software updates and revised replacement parts.

The firmware in the Engine Control Unit (ECU) may very well prevent regeneration when other faults are present, for example this one:
16507 - P0123 - Throttle Position Sensor (G69) - Signal too High.

VAG Error Code: 16457/16473/5568/9859

EOBD II Error Code: P0073

Fault Location:
Ambient (Outside) Air Temperature Sensor (G17) - Signal too High/Short Circuit to Positive

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.

Wiring/Connector(s).
Ambient (Outside) Air Temperature Sensor (G17) faulty.
Engine Control Module (ECM).

Possible Solutions:
Check/Replace all faulty Wiring/Connector(s).
Read Measuring Value Blocks (MVB).
Ambient Air Temperature Sensor (F38) > 87 °C.

When is the code detected?:
The Engine Control Module (ECM) has detected an open or short circuit condition on the Ambient Air Temperature Sensor (F38) circuit.


VAG Error Code: 16785/001025/4807/7337

EOBD II Error Code: P0401

Fault Location:
Exhaust Gas Recirculation (EGR) System - Insufficient Flow Detected

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.
Reduced Exhaust Gas Recirculation (EGR).
Reduced Power Output/Engine running rough.
Increased Emissions.

Wiring/Connector(s).
Hose leak/blockage.
Exhaust Gas Recirculation (EGR) Flow restricted/clogged.
Exhaust Gas Recirculation (EGR) Valve stuck closed/leaking/faulty.
Exhaust Gas Recirculation (EGR) System faulty.

Possible Solutions:
Check/Replace all faulty Wiring/Connector(s).
Check/Clean Exhaust Gas Recirculation (EGR) System.
Read Measuring Value Blocks (MVB).
Check/Replace Exhaust Gas Recirculation (EGR) Valve.
Control deviation < limit from map f (engine speed, desired airflow).

Special Notes:
When this fault is stored in a 2009-2012 North American Region (NAR) market 2.0L CR TDI (CBEA, CJAA, CKRA) VW Jetta/Golf (1K/AJ) or the NMS Passat (A3) chassis:
Please see: Technical Service Bulletin (TSB) 26-13-03 | Technical Product Information (TPI) #2031583/3 (formerly know as 26-12-08 | Technical Product Information (TPI) #2031583). When the Exhaust Valve Control Module (J883) is faulty, the engine controller may have any of the following Diagnostic Trouble Codes (DTCs):
P046F, P0477, P048A, P048B, P048C, P0401.
Some TDI-CR engines have a filter for the Exhaust Gas Recirculation (EGR) that can become restricted and cause a "Insufficient Flow" code.

When this fault is stored in a 2009-2014 North American Region (NAR) market 2.0L CR TDI (CBEA or CJAA ) VW Jetta/Golf (1K/AJ).
Please See Technical Product Information (TPI) 01 14 11 | #2034898
May also have fault code stored in Engine Control Module (ECM).
009315/P2463/009315 - Diesel Particulate Filter (DPF) - Excessive Soot Accumulation.
Restrictions in the Exhaust Gas Recirculation (EGR) Filter may occur after a regeneration, if the soot loads where high before the regeneration.

Tech Notes:
Exhaust Gas Recirculation (EGR) flow malfunction could be caused by a clogged Exhaust Gas Recirculation (EGR) valve or Exhaust Gas Recirculation (EGR) tube. Before replacing any parts try cleaning the Exhaust Gas Recirculation (EGR) valve, tube and passages.

When is the code detected?:
Restrictions in the EGR Filter may occur after a regeneration, if the soot loads where high before the regeneration.

VAG Error Code: 19226/18434/008194/5182/5182/5189

EOBD II Error Code: P2002

Fault Location:
Diesel Particulate Filter (DPF) Trap, Bank 1 - Efficiency Below Threshold/Malfunction

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.

Exhaust Gas Pressure Sensor 1 (G450) faulty.
Diesel Particulate Filter (DPF) faulty.

Possible Solutions:
Check/Replace Exhaust Gas Pressure Sensor 1 (G450).
Diesel Particulate Filter (DPF).
Perform Emergency Regeneration (Refer to Specifications!).
Check/Replace Diesel Particulate Filter (DPF).

Special Notes:
Skoda Superb (3U) & VW Passat (3B) (Engine Codes: BGW, BSS, BWW) had issues with faulty Exhaust Gas Pressure Sensor 1 (G450), they were defective from factory and due to a leaking sealing the measured values were incorrect and resulted in wrong calculated particle filter load and unsuccessful regeneration cycles.
With CBEA and CJAA engines, the factory documentation may show the wrong part location for the Exhaust Gas Pressure Sensor 1 (G450). This sensor is in a foil pouch just behind the oil cap.

As taken from my new Free EOBD II Error Codes software
 

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Discussion Starter #5
I must be getting old. I keep thinking I am replying to this post but when follow up i dont see a reply.
 
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