I'm driving 65 mph down the highway the Glow Plug light starts flashing and the motor looses power and within a minute quits. Engine turns over but, will not start. I try to read the codes with Ross-Tech, the software sees the cable but, says not connected to the car, the green LED on the VAG cable lights. I try to read the codes with ScanTool and a OBDII cable and get similar results, sees the cable but, cannot get any data from the car. I have used both of these in the past with success. Pin 16 of the OBDII connector has 12 volts and I have a factory radio. The T94 ECU connector has 2.9 volts on CAM H (68), 2.1v CAM L (67), GND (1) is good, 12.1v on pins 87 & 92 but, pin 5 is floating (random millivolts). All fuses are good. Where does pin 5 get power? I assume the ECU has to work before I can read the codes or start the car? What next?