marcfire4
Skoda Superb Diesel Limp Mode and Gearbox Issues
Summary of the thread
A 2001 Skoda Superb diesel with 154965 km is experiencing limp mode and rough gearbox shifting. The initial suspicion is that ABS issues might be affecting the transfer case and control module, potentially implicating the torque converter. Another person with similar issues suggests checking the ABS control module for diagnostic trouble codes, as incorrect ABS data can interfere with the gearbox control module. Ultimately, the problem was resolved by fixing a faulty earth connection, which restored normal operation without any repair costs.
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4 comment(s)
marcfire4 (community.author)
Thanks for the quick reply! When you say ABS issues impacting the torque converter, do you mean the ABS was actually faulty, or just sending the wrong signals due to something else? And did the fault codes specifically mention the torque converter, or was it more of a process of elimination?
karlmond1
Indeed. The ABS wasn't necessarily 'faulty' in the sense of being broken, but it was sending incorrect data, which then cascaded through the system. The fault codes were related to the ABS and wheel speed sensors, not directly mentioning the torque converter. However, the diagnostic process revealed that the incorrect ABS data was interfering with the gearbox control module and causing the torque converter to behave erratically. I would suggest a thorough diagnostic check at a workshop.
marcfire4 (community.author)
Thanks a lot for your help! I got it sorted. Turns out, despite the fault codes pointing all over the place, it was a dodgy earth connection causing all sorts of mayhem. Cleaned it up, and it's running like a dream. And the best part? 0€ repair cost!
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SKODA
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SUPERB
karlmond1
I have experienced similar symptoms on my Skoda Superb. The limp mode activation, combined with the gearbox issues, sounds familiar. Have you checked the ABS control module for any diagnostic trouble codes? In my case, consequential faults stemming from ABS issues were impacting the torque converter and triggering limp mode.