TTlink plug and play. Audi TT 225 1.8t
Runs and starts fine. After around 1 hr driving, it will randomly not start after shutting engine down. It runs and drives fine until engine is shutdown then ecu wont connect to laptop.
Ecu will not connect to laptop, tach wont sweep.
Let it cool down for around 10-30min, turn key on, tach will sweep, ecu will connect to laptop.
Tested power/ground wires
12v power on pin 3, 62 and 21 (21 is supposedly 12v feedback from a relay when not powered on)
Grounds on 1 and 2
Stock ecu will start engine even when Link wont start. Albeit with skewed afrs due to unplugges sensors.