01-21-2009, 03:32 PM
Glen, this is a huge issue with the 993. Best solution: remove the security bolts, leave only the two hex nuts that fasten the ECU to the chassis. Incase it in a big plastic bag and zip tie it. If it gets wet, you need to take it apart and either clean with circuit board cleaner and a tooth brush or leave on the dash of your tow vehicle with the defrost on full for 45 mins. Ask me how I know........:X