VW Amarok Error Codes After System Check Issues

Had similar issues with my VW Tiguan 2018. The onboard diagnostics showed incomplete system readiness after a computer reset. Multiple fault codes appeared in the instrument cluster. The root cause turned out to be a failing exhaust gas temperature sensor interfering with emissions test parameters. This triggered the check engine light and prevented several onboard diagnostic monitors from completing their readiness tests. A proper diagnosis requires connecting to the OBD port and checking specific readiness monitors. Not all sensors will complete their tests immediately, some require specific driving cycles. The system typically needs: 15-20 minutes of steady highway driving, Several cold starts, Multiple idle periods If readiness monitors still fail to complete after these steps, there is likely an underlying sensor or component issue requiring replacement. In my case, replacing the faulty temperature sensor and performing a computer reset resolved the problem. This is not necessarily a major repair, but should be addressed soon as it can affect emissions compliance and engine performance. Professional diagnostic testing can pinpoint which specific sensor or system is causing the incomplete readiness status.

Thanks for sharing your experience. My situation turned out quite similar, the emissions system needed attention after the readiness monitors kept failing. A proper vehicle inspection revealed a bad oxygen sensor that was preventing the drive cycle completion. Just wondering, do you remember roughly what you paid for the diagnostic work and sensor replacement? Also, has everything been working fine since the repair, or have you noticed any other issues popping up? The onboard diagnostics on these VWs can be quite sensitive sometimes.

After getting my temperature sensor replaced, all system readiness checks completed successfully. The car diagnostics were actually free since I had a service agreement, which covered the OBD readiness scan and fault code reading. Everything has been working perfectly since then with no additional error codes or emissions test issues. The exhaust system is performing as it should, and all monitoring cycles complete normally during regular driving. Getting the proper diagnostic work done early was key, it prevented any cascade of problems that often happen when sensor issues are left unchecked. What is particularly satisfying is that the onboard diagnostic system now shows all readiness monitors as complete. This confirms the repair fully resolved the original issue without introducing any new problems. These VW monitoring systems are indeed sensitive, but once properly fixed, they maintain reliable operation.

I finally decided to get my Amarok checked by a different mechanic, and I am glad I did. The diagnostic process was straightforward, they connected their professional scan tool to check the system readiness monitors and quickly identified the failing oxygen sensor. The total cost came to 320€ including: Complete car diagnostics scan, Oxygen sensor replacement, Computer reset and system verification After the repair, I completed the required drive cycles and all readiness monitors passed successfully. The check engine light has stayed off and no new error codes have appeared in the last few weeks. The speedometer cluster is now error-free and working normally. The experience taught me that finding the right repair shop makes a huge difference. Their systematic diagnostic approach saved me from replacing unnecessary parts. The car runs smoother now and I feel confident the emissions system is working properly.