VW Transporter Diesel Reset Drift Error, Fix Guide

Had similar issues on my 2005 VW Touran 2.0 TDI. The rough running combined with check engine warnings pointed directly to fuel injection problems. After multiple system resets failed to resolve it, testing revealed a faulty injector that was disrupting proper fuel delivery. The airflow sensors were tested but showed normal readings. The real culprit was carbon buildup inside the injector, preventing proper atomization and creating uneven fuel delivery. This directly impacted fuel economy and engine performance. The repair required removing and cleaning all injectors, with one needing complete replacement due to internal wear. Performance tuning was also necessary after the repair to ensure proper injection timing. While time-consuming, this resolved both the rough running and error codes. This is typically a serious repair that requires specialized diagnostic equipment and expertise with diesel fuel injection systems. Would strongly recommend finding a shop that specializes in VW TDI engines, as proper calibration after repair is crucial for optimal performance. The symptoms you describe match classic injection issues. Getting it addressed promptly can prevent additional damage to the fuel delivery system and restore proper engine operation.

Thanks for sharing your experience. Your fuel injection system fix sounds similar to my situation. Can you remember roughly how much you paid for the complete repair? Also curious if youve had any recurring issues since getting it fixed, especially with the drift compensation or engine performance. Been a few months since my repair attempt and want to avoid another costly mistake at the shop.

Thanks for asking about the costs. The repair solved my injector issues completely, havent seen any problems with drift compensation or rough running in over a year now. The total bill came to 515€ for diagnosing and replacing the defective injection valve. The performance tuning after the fix was included in that price, which was important to properly calibrate the new injector. The engine runs noticeably smoother now and fuel consumption is back to normal. The car sensors are all reporting normal values and the check engine light has stayed off. One key factor was having a shop use proper diagnostic equipment to confirm the faulty injector was causing the drift compensation issue. Getting the right diagnosis first time saved money in the long run by avoiding multiple repair attempts. Unlike your previous experience, once the injection system was properly repaired and reset, all the error codes cleared permanently. If youre still having issues, it really sounds like you might be dealing with the same root cause I had.

Following up on my repair saga, finally got the issue sorted! Found a diesel specialist shop that actually knew what they were doing with VW engines. Right away their onboard diagnostics pointed to the same injection system problems mentioned here. The mechanic found heavy carbon deposits in two injectors causing the compensation adjustment errors. They did a complete fuel injection system cleanup, replaced one badly worn injector, and performed a proper system reset. Total cost was 490€ which included the parts and calibration work. What a difference! The engine runs smooth now, no more check engine lights, and the car sensors are all showing normal readings. Wish I had found this specialist first instead of wasting money at the other shop. Really appreciate the advice about finding someone who knows these engines, it definitely paid off. For anyone else dealing with similar symptoms, my suggestion would be to skip the general repair shops and go straight to a diesel specialist. The proper diagnostic equipment and expertise with these systems makes all the difference in getting it fixed right the first time.