VW Nivus Starting Issues Point to Faulty Cam Sensor

Having faced a similar situation with my 2018 VW T-Cross last year, I understand your concern about the rough idling and starting problems. With some experience in basic car maintenance, I initially thought it was something more complex, but it turned out to be a common automotive sensor issue. The symptoms were identical, difficult starts, rough idling, and occasional stalling engine problems. The workshop diagnosed a loose connection in the camshaft position sensor wiring harness. The repair involved checking the sensor connections and replacing a damaged cable, costing 95€ including diagnostic work. The fix took about an hour, and the engine performance returned to normal immediately. Before jumping to conclusions though, could you share: Current mileage on your Nivus, Exact error codes from the diagnostic scan, Whether the check engine light is constantly on or flickering, Any recent maintenance work performed This information would help determine if your sensor failure symptoms match what I experienced or if there might be other underlying issues to investigate.

Thanks for the advice. My Nivus has 19081km on the clock, with the last service completed just 2 months ago. The check engine light has been constantly illuminated since these issues started. The error code from the scan reads P0340, which does point toward the camshaft position sensor being the likely culprit. Your experience with similar stalling engine symptoms and rough idling issues gives me confidence to focus on the camshaft sensor as the root cause. Will schedule a workshop visit to have the wiring and sensor connections checked first before replacing any parts.

Thanks for the update on your Nivus. The P0340 code definitely aligns with my T-Cross experience, and your mileage is similar to when my issues started. The constant check engine light combined with rough idling and timing issues points strongly to camshaft position sensor problems. Since your service was recent, have the workshop check their work first. Sometimes timing issues can occur if components weren't properly secured during routine maintenance. In my case, the wiring harness damage wasn't immediately visible until they did a thorough inspection. My crankshaft timing had slight variations before the repair, which caused similar stalling engine symptoms. After fixing the sensor wiring, these problems completely disappeared. Just ensure they check both the wiring and the sensor itself, replacing only one might not solve the underlying issue if both are compromised. Good call on having them inspect the connections before jumping to full sensor replacement. This approach saved me money as the wiring repair was cheaper than a complete sensor replacement would have been.

The diagnostic information you shared is really helpful. The constant check engine light and P0340 code match exactly what I encountered with my stalling and rough idle problems. Having such recent service work done is actually good timing, as the workshop should still have all my vehicle data on hand. Based on your previous cases with similar timing issues, I feel more confident now that the camshaft position sensor is likely the source of my troubles. Your experience shows that checking both the wiring harness and sensor connections makes sense before replacing parts unnecessarily. Since my Nivus has relatively low mileage at 19081km, there is a good chance the issue could be resolved with a thorough inspection and possible wiring repair rather than complete sensor replacement. Will get the workshop to carefully check all connections first, especially given how a loose automotive sensor connection caused similar symptoms in your case. Thanks for sharing such detailed repair insights, really helped narrow down the diagnostic approach I should take with the workshop.