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VW Passat b6 2.0 TDI BKP: Addressing Sporadic Cylinder and Fuel Sensor Errors with VCDS

pitbul455 30426 13
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  • #1 17026370
    pitbul455
    Level 12  
    Posts: 43
    Rate: 23
    Board Language: polish
    Hello, I am asking for advice because checking the VCDSem engine I encountered two sporadic errors, which are repeated from time to time, I bought 5 months ago a VW Passat b6 with 2.0 TDI engine marked BKP 140 HP engine, so it is only freshly known. If these errors go to the mechanic, the injection was a service action and all were listed on the site at 120 thousand, currently 239 thousand. Every now and then a 1st cylinder error, sometimes a 3rd and fuel temperature sensor. What further steps to take to not drown the sack of money. I will add that the car starts normally, there are no power drops, nothing is lit. Generally, if I didn't check, I wouldn't even see it. Thank you in advance for your help.

    2 - number of errors found. Here they are:

    004711 - Cylinder 3 Injector Valve (N242)
    P1267 - 006 - regulation limit exceeded - Occasional
    Frozen frame:
    Error status: 00100001
    Error priority: 0
    Error rate: 2
    Internal error counter: 16
    Mileage: 239 092 km
    Time indicator: 0
    Date: 2018.01.22
    Time: 15:08:31

    Frozen frame:
    Engine speed: 1472 / min
    Torque: 56.0 Nm
    Speed: 51.0 km / h
    73.71%
    Text: 4,875 uF
    Text: 15.25 mJ
    Text: 8 mJ
    Unknown data, B / D: 000 167 210

    000384 - Fuel temperature sensor A (G81)
    P0180 - 006 - Circuit fault - Occasional
    Frozen frame:
    Error status: 00000001
    Error Priority: 1
    Error rate: 9
    Internal error counter: 38
    Mileage: 239 650 km
    Time indicator: 0
    Date: 2018.02.01
    Time: 21:28:00

    Frozen frame:
    Engine speed: 1088 / min
    Torque: 0.0 Nm
    Speed: 20.0 km / h
    0.00%
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  • #2 17081605
    airwolff
    Level 13  
    Posts: 105
    Help: 1
    Rate: 50
    Board Language: polish
    P1267
    Possible symptoms

    Drive problems
    Reduced power
    The rough engine is running
    Increased emission values

    Possible causes

    Regulation times exceeded
    Contact resistance

    Possible solutions

    Check injectors and injector wiring
    See Measurement. Value block 018
    Check the injector / wiring resistance
    P0180
    G81 damaged
    The defective module is damaged
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  • #3 17081623
    szymitsu21
    VIP Meritorious for electroda.pl  
    Posts: 3702
    Help: 342
    Rate: 1288
    Board Language: polish
    Check corrections, beeps, and compression.
  • #4 17082451
    VENDETTI
    Level 16  
    Posts: 119
    Help: 22
    Rate: 32
    Board Language: polish
    The pump injection beam is not contacting.
  • #5 17082761
    szymitsu21
    VIP Meritorious for electroda.pl  
    Posts: 3702
    Help: 342
    Rate: 1288
    Board Language: polish
    VENDETTI wrote:
    The pump injection beam is not contacting.



    Quote:
    What further steps to take to not drown the sack of money. I will add that the car starts normally, there are no power drops, nothing is lit. Generally, if I didn't check, I wouldn't even see it. Thank you in advance for your help.





    I don't think you are right ...
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  • #6 17082771
    pitbul455
    Level 12  
    Posts: 43
    Rate: 23
    Board Language: polish
    He went to improve contacts, I will pick up tomorrow, go a little over and check for errors, we'll see and the check has broken out from the temperature sensor, it has been replaced.
  • #7 17083118
    domex32
    VIP Meritorious for electroda.pl  
    Posts: 6714
    Help: 585
    Rate: 2445
    Board Language: polish
    Injection for replacement or regeneration. That's for sure.
  • #8 17083160
    pitbul455
    Level 12  
    Posts: 43
    Rate: 23
    Board Language: polish
    There was a service action at the Dealership, all of them replaced for new factory also would not let me pull them out, this is the final thing I would do. But I will find out tomorrow.
  • #9 17083443
    domex32
    VIP Meritorious for electroda.pl  
    Posts: 6714
    Help: 585
    Rate: 2445
    Board Language: polish
    Make group 023 log on free and upload to forum.
  • #10 17086690
    pitbul455
    Level 12  
    Posts: 43
    Rate: 23
    Board Language: polish
    VW Passat b6 2.0 TDI BKP: Addressing Sporadic Cylinder and Fuel Sensor Errors with VCDS
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  • #11 17098370
    pitbul455
    Level 12  
    Posts: 43
    Rate: 23
    Board Language: polish
    Returning to the topic, improving the contacts was enough to make no mistakes. As for the fuel sensor, you had to solder the cable to the plug itself. My problem is solved.
  • #12 17184841
    VENDETTI
    Level 16  
    Posts: 119
    Help: 22
    Rate: 32
    Board Language: polish
    szymitsu21 wrote:
    VENDETTI wrote:
    The pump injection beam is not contacting.



    Quote:
    What further steps to take to not drown the sack of money. I will add that the car starts normally, there are no power drops, nothing is lit. Generally, if I didn't check, I wouldn't even see it. Thank you in advance for your help.





    I don't think you are right ...

    Time has been right on whose side. Thank you.
  • #13 17184960
    szymitsu21
    VIP Meritorious for electroda.pl  
    Posts: 3702
    Help: 342
    Rate: 1288
    Board Language: polish
    VENDETTI wrote:
    szymitsu21 wrote:
    VENDETTI wrote:
    The pump injection beam is not contacting.



    Quote:
    What further steps to take to not drown the sack of money. I will add that the car starts normally, there are no power drops, nothing is lit. Generally, if I didn't check, I wouldn't even see it. Thank you in advance for your help.





    I don't think you are right ...

    Time has been right on whose side. Thank you.



    Very good :) Congratulations on your knowledge and experience.
  • #14 19177149
    Greaseman
    Level 1  
    Posts: 1
    Where is the pump injection beam located? Having similar issue and in my case my car is going into limp
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Topic summary

✨ The discussion revolves around a VW Passat B6 2.0 TDI (BKP) experiencing sporadic cylinder and fuel sensor errors as diagnosed by VCDS. The user reports intermittent errors related to the 1st and 3rd cylinders and a fuel temperature sensor, despite the vehicle starting normally and showing no power loss. Responses suggest checking injector wiring, correcting contact issues, and possibly replacing or regenerating the injectors. The user later confirms that improving electrical contacts resolved the errors, while the fuel sensor issue required soldering the cable to the plug. Overall, the problem was effectively addressed without significant financial expenditure.
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FAQ

TL;DR: BKP 2.0 TDI Passat (140 hp) with sporadic P1267/P0180 often shows "regulation limit exceeded"; confirm with VCDS first. This FAQ helps BKP owners triage injector and fuel-temp faults cheaply. [Elektroda, pitbul455, post #17026370]

Why it matters: It steers you to wiring and measurement checks before spending on injectors.

Quick Facts

What does P1267 mean on a VW 2.0 TDI BKP?

P1267 indicates Cylinder 3 Injector Valve (N242) control hit its limit. Symptoms include drive issues, reduced power, rough running, and higher emissions. Causes include exceeded regulation times or contact resistance in the injector circuit. Start by inspecting the injector and its wiring. Review VCDS Measuring Block 018 and check harness resistance. "Check injectors and injector wiring." Clear codes and retest. [Elektroda, airwolff, post #17081605]

What does P0180 Fuel Temperature Sensor A (G81) circuit fault indicate?

P0180 points to a fault in the fuel temperature sensor circuit. Expect a damaged G81 sensor, a poor connector, or broken wiring. Inspect the plug for looseness or corrosion. Check continuity and supply/ground on the two or three relevant wires. Repair or replace the connector or sensor as needed, then clear codes and test. [Elektroda, airwolff, post #17081605]

How do I fix sporadic P1267/P0180 without replacing injectors?

Address contact issues first. Improve and re-seat injector loom contacts at the pump‑duse injectors. Repair the fuel temperature sensor plug by soldering the wires to restore continuity. Clear DTCs, drive several trips, and re-scan. This resolved the thread case without injector replacement. [Elektroda, pitbul455, post #17098370]

Where is the pump‑injector wiring loom on the BKP, and how do I access it?

The injector wiring loom sits under the valve cover and connects to each unit injector. It passes through the cylinder head to an external connector. Access it by removing the engine cover and valve cover, then unplugging the head pass‑through connector. Keep the area clean to avoid contamination. [Volkswagen SSP 314]

How can I test injector regulation with VCDS (Measuring Block 018)?

Open VCDS, select Engine 01, then Measuring Blocks, and view Block 018. Observe injector regulation values and switching behavior at idle and during light revs. Look for outliers relative to other cylinders. Log data and compare after any wiring or contact repairs. Use this before considering injector replacement. [Elektroda, airwolff, post #17081605]

What should I log in VCDS Group 023, and why?

Log Group 023 during a normal road drive. Capture live injector performance to help spot intermittent behavior under load and speed changes. Save the log and review for deviations or repeats. Sharing this log helps targeted diagnosis and avoids guesswork. [Elektroda, domex32, post #17083443]

Can poor injector‑loom contacts cause limp mode on a BKP?

Yes. Poor contacts can trigger injector control faults that reduce power and cause driveability problems. The ECU may protect itself by lowering available torque, perceived as limp mode. Fixing wiring contact issues often restores normal power after clearing codes. [Elektroda, airwolff, post #17081605]

Is it normal to have these codes with no warning lights or power loss?

Yes. The example car started normally, pulled fine, and showed no warning lights. The driver noticed nothing until scanning with VCDS. Sporadic, contact‑related faults can remain invisible in daily driving until they worsen. [Elektroda, pitbul455, post #17026370]

Do I need to replace injectors when P1267 appears?

Not immediately. Verify wiring and contacts first, then measure with VCDS. The thread case cleared by improving loom contacts and repairing the G81 connector. Replace or refurbish injectors only after tests point to a true injector defect. [Elektroda, pitbul455, post #17098370]

What do "regulation limit exceeded" and an internal error counter mean?

They show the ECU hit its control limit and recorded intermittent events. In the example, the internal error counter reached 38 and error rate 9, at about 239,650 km. That pattern usually indicates contact or wiring instability rather than a hard failure. [Elektroda, pitbul455, post #17026370]

How do I repair a damaged G81 fuel temperature sensor connector?

  1. Inspect the G81 plug; resolder or replace the wires to the connector.
  2. Ensure solid strain relief and seal the repair against moisture.
  3. Clear codes, road‑test, and re‑scan to confirm the fix. This resolved the fuel temp fault in the thread. [Elektroda, pitbul455, post #17098370]

What else should I check before spending money on parts?

Check injector corrections in VCDS, perform a buzzer/actuation test if available, and verify compression. These checks help separate wiring issues from mechanical faults. As one expert advised, "Check corrections, beeps, and compression." Do these before authorizing injector work. [Elektroda, szymitsu21, post #17081623]

After cleaning contacts, how do I confirm the repair worked?

Clear DTCs, drive several cycles in mixed conditions, then re‑scan with VCDS. If the injector and fuel‑temperature codes do not return and drivability remains normal, the repair is effective. Monitor occasionally for recurrence. [Elektroda, pitbul455, post #17098370]

What did "pump injection beam" mean in this thread?

It referred to the pump‑duse injector wiring harness having poor contact. Restoring proper contact at the harness resolved the intermittent injector code in this case. [Elektroda, VENDETTI, post #17082451]

What if cleaning contacts and soldering the plug doesn’t stop the codes?

Then suspect a defective component. Replace the G81 sensor or the injector wiring harness if tests fail. If VCDS and resistance checks implicate an injector, consider refurbishment or replacement after compression checks. The expert notes a "defective module" may require replacement. [Elektroda, airwolff, post #17081605]
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