Most of the time ECU flashing works without a problem but there is always the small chance that something could go wrong.  ECUs from different manufacturers all have their unique characteristics as well as potential problems too.

This article is about issues encountered when writing to a Honda/Keihin ECU with the Woolich Racing Tuned software.  This could occur if there was previously a problem with communication during a write operation (e.g. USB cable damaged), if Windows shut down during the write operation (e.g. restart after system update) or any number of other possible reasons.

In some cases the Honda/Keihin ECU could become non-responsive, meaning that it was working fine initially but suddenly it is no longer possible to communicate with the ECU.  You can check if the ECU is unresponsive by trying to perform a simple task like read the Part Number and Serial Number from the Woolich Racing Tuned software as shown below:

If you can read the Part Number and Serial Number then the communication is working well and you can ignore this article.  If you do not get a response from the ECU or see multiple error messages when you try and communicate with your Honda/Keihin ECU, it might have become unresponsive.

If you find yourself in this situation please do not panic as the Woolich Racing technical support team have seen these problems before.  Please open a support ticket so that we can provide you with further information to get you up and running again.