Posts

Showing posts from December, 2025

Xhorse Multi-Prog Review: Easy Clone A VW CC MED17.1ECU

Image
Hey everyone, let me walk you through an ECU cloning job I just wrapped up using the Xhorse Multi Prog . A customer dropped off two modules - one original and a used one from eBay - and asked me to copy the data from the original to the replacement. No complicated instructions, just a straightforward clone. Here's how it went. Step1. Connect First, I hooked up the original ECU. The Multi-Prog makes pin-outs super clear, so even if you're not a wiring diagram expert, you'll get it right. I selected the ECU model - in this case, a VW CC with an MED 17.1 - and hit Connect. Step2. Read EPROM & Flash Once connected, I focused on two key sections: Internal EPROM and Internal Flash. I started by reading the Internal EPROM. Hit the read button, waited for the progress bar, and checked to make sure the data wasn't blank. Everything looked good, so I saved the file. Next, I moved to the Internal Flash. Reading this takes a bit longer since the file is larger, but once it fin...