Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
I changed the valve cover gasket without disconnecting the battery. I know it was stupid. Fried the DME but before I put another $1000 DME in I want to be sure that nothing is lingering to fry this one.